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CHEAP DIY REMOTE CONTROLLED FLAT PANELIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
BLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BUILDING A SMALL IMAGING OBSERVATORY DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: OBSERVATORY PLANNING AND GERMAN EQUATORIAL MOUNTS To transfer this to your observatory plans, you just need to draw a circle with a radius of R3 that is centred on the intersection of the mount RA and Dec axes. This will work for both plan and elevation views. Anything on the plan that protrudes in to the BLACKWATER SKIES: IMAGING TOOLBOX Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off PIXINSIGHT DSLR WORKFLOW It is the ratio of dark current fixed pattern to dark current noise that we are interested in increasing. Integrating multiple dark frames in to a master dark improves the SNR (ΔSNR) for each additional frame stacked as ΔSNR = √ n – √ (n -1) where n is the number of dark frames. You will notice that this is the same relationship as in LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
CHEAP DIY REMOTE CONTROLLED FLAT PANELIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
BLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BUILDING A SMALL IMAGING OBSERVATORY DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: OBSERVATORY PLANNING AND GERMAN EQUATORIAL MOUNTS To transfer this to your observatory plans, you just need to draw a circle with a radius of R3 that is centred on the intersection of the mount RA and Dec axes. This will work for both plan and elevation views. Anything on the plan that protrudes in to the BLACKWATER SKIES: IMAGING TOOLBOX Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off PIXINSIGHT DSLR WORKFLOW It is the ratio of dark current fixed pattern to dark current noise that we are interested in increasing. Integrating multiple dark frames in to a master dark improves the SNR (ΔSNR) for each additional frame stacked as ΔSNR = √ n – √ (n -1) where n is the number of dark frames. You will notice that this is the same relationship as inNOVA V1405 CAS
V1405 Cas Annotated V1405 Cas. Acquisition: William Optics GT81, WO Flat 6AIII 0.8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik R, G, B 1.25″ Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator Pro Processing: PixInsight 1.8 Dates: March 30th 2021 Lights: R 5 x 60s, G 5 x 60s, B 5 x 60s, Unity Gain, -15CDarks: 300
ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to theIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
METEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If you BUILDING A SMALL IMAGING OBSERVATORY The pier foundation and pier are constructed from concrete, as are the shallow observatory foundations. I decided to use bags of ready-mixed concrete for the job. Mixing concrete from bulk bags of cement and ballast would certainly be cheaper, but moving and storing them would have been difficult for me. Individual bags of ready-mix are much THE ANDROMEDA GALAXY The Andromeda Galaxy – M31, M32 & M110. This is the Andromeda Galaxy, taken 14th/15th September 2013. The image consists of 6 x 30 minute subexposures. Read on below for technical details. This was shot when the moon was slightly over half full, but it was low in the sky and more than 90 degrees away from the target. OBSERVATORY PLANNING AND GERMAN EQUATORIAL MOUNTS To transfer this to your observatory plans, you just need to draw a circle with a radius of R3 that is centred on the intersection of the mount RA and Dec axes. This will work for both plan and elevation views. Anything on the plan that protrudes in to thePRIVACY POLICY
Blackwater Skies collects and stores the following personally identifiable information: This information is used for the following purposes: Identification and filtering of spam comments in combination with third party databases (Email Addresses only) By submitting comments, you consent to the collection, storage and processing ofthis
PIXINSIGHT DSLR WORKFLOW PixInsight has a SuperBias module that allows us to do exactly that, with one proviso: It will only work for a master bias frame that has a dominant pattern of vertical and/or horizontal stripes. If your camera produces a master bias with some other pattern, such as diagonal bands, stripes or something else, SuperBias probably won’t be ofSEPTEMBER 2013
Markarian’s Chain (bottom left) plus M87, M89 and M90. This is a small part of the huge Virgo Cluster of galaxies. The image is composed of 81 ten minute exposures (13.5 hours) taken over nine nights between 1st April and 4th May 2013. CHEAP DIY REMOTE CONTROLLED FLAT PANEL ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to theIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
METEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If youBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UK THE ANDROMEDA GALAXY The Andromeda Galaxy – M31, M32 & M110. This is the Andromeda Galaxy, taken 14th/15th September 2013. The image consists of 6 x 30 minute subexposures. Read on below for technical details. This was shot when the moon was slightly over half full, but it was low in the sky and more than 90 degrees away from the target. DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: BLACKWATER SKIES: IMAGING TOOLBOX Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off CHEAP DIY REMOTE CONTROLLED FLAT PANEL ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to theIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
METEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If youBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UK THE ANDROMEDA GALAXY The Andromeda Galaxy – M31, M32 & M110. This is the Andromeda Galaxy, taken 14th/15th September 2013. The image consists of 6 x 30 minute subexposures. Read on below for technical details. This was shot when the moon was slightly over half full, but it was low in the sky and more than 90 degrees away from the target. DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: BLACKWATER SKIES: IMAGING TOOLBOX Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
BLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 THE ANDROMEDA GALAXY The Andromeda Galaxy – M31, M32 & M110. This is the Andromeda Galaxy, taken 14th/15th September 2013. The image consists of 6 x 30 minute subexposures. Read on below for technical details. This was shot when the moon was slightly over half full, but it was low in the sky and more than 90 degrees away from the target. PIXINSIGHT DSLR WORKFLOW So how many bias frames is enough? The solution is to resort to statistics (not the kind used by politicians, real sciency-type statistics!) I simply ran the PixInsight Statistics process, and selected the image that I was interested in. The figure we want is the ‘Standard Deviation’ which is a reasonably good indicator of how much random noise there is in an image (there are better ones PIXINSIGHT DSLR WORKFLOW It is the ratio of dark current fixed pattern to dark current noise that we are interested in increasing. Integrating multiple dark frames in to a master dark improves the SNR (ΔSNR) for each additional frame stacked as ΔSNR = √ n – √ (n -1) where n is the number of dark frames. You will notice that this is the same relationship as in A CHEAP MULTI-CHANNEL DEW HEATER CONTROLLER Following on from my post about DIY Nichrome Dew Heater Bands, I’m going to show you how to build a cheap and effective dew heater controller.Whilst preventing dew formation is essential to avoid interruptions to the night’s imaging, we do not want to generate excessive heat as this can cause air currents in front of the telescope’s optics and degrade the quality of the image. IMAGING TOOLBOX UPDATES JULY 2013 26th July 2013 in Imaging Toolbox. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
DECEMBER 2013
The histogram is probably the most important tool available in any astro-imaging application, both for capturing images and for processing them once captured. JULY 2013 – BLACKWATER SKIES A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations.SEPTEMBER 2013
Markarian’s Chain (bottom left) plus M87, M89 and M90. This is a small part of the huge Virgo Cluster of galaxies. The image is composed of 81 ten minute exposures (13.5 hours) taken over nine nights between 1st April and 4th May 2013. ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the CHEAP DIY REMOTE CONTROLLED FLAT PANELIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
PHD GUIDING BASIC USE AND TROUBLESHOOTING PHD Guiding. – Test that PHD can connect to your camera and mount, and that it can send guide commands which are acted upon: Camera: Firstly connect to the camera by pressing the ‘camera’ icon on the left of the PHD tool bar. A dialog box will pop up and give you aBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500METEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If you BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UK DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: BLACKWATER SKIES: IMAGING TOOLBOX Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the CHEAP DIY REMOTE CONTROLLED FLAT PANELIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
PHD GUIDING BASIC USE AND TROUBLESHOOTING PHD Guiding. – Test that PHD can connect to your camera and mount, and that it can send guide commands which are acted upon: Camera: Firstly connect to the camera by pressing the ‘camera’ icon on the left of the PHD tool bar. A dialog box will pop up and give you aBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500METEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If you BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UK DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: BLACKWATER SKIES: IMAGING TOOLBOX Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
NOVA V1405 CAS
V1405 Cas Annotated V1405 Cas. Acquisition: William Optics GT81, WO Flat 6AIII 0.8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik R, G, B 1.25″ Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator Pro Processing: PixInsight 1.8 Dates: March 30th 2021 Lights: R 5 x 60s, G 5 x 60s, B 5 x 60s, Unity Gain, -15CDarks: 300
BLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH AND Calculating f-ratios. The f-ratio of a camera lens or a telescope can be calculated very simply as: f-ratio = focal length / aperture. So for example, my old Meade SCT has a focal length of 2,000mm and it has an aperture of 203mm (i.e. the mirror has a diameter of 203mm). Therefore its f-ratio is 2,000 / 203 = f/9.85. THE ANDROMEDA GALAXY The Andromeda Galaxy – M31, M32 & M110. This is the Andromeda Galaxy, taken 14th/15th September 2013. The image consists of 6 x 30 minute subexposures. Read on below for technical details. This was shot when the moon was slightly over half full, but it was low in the sky and more than 90 degrees away from the target. PIXINSIGHT DSLR WORKFLOW So how many bias frames is enough? The solution is to resort to statistics (not the kind used by politicians, real sciency-type statistics!) I simply ran the PixInsight Statistics process, and selected the image that I was interested in. The figure we want is the ‘Standard Deviation’ which is a reasonably good indicator of how much random noise there is in an image (there are better ones PIXINSIGHT DSLR WORKFLOW It is the ratio of dark current fixed pattern to dark current noise that we are interested in increasing. Integrating multiple dark frames in to a master dark improves the SNR (ΔSNR) for each additional frame stacked as ΔSNR = √ n – √ (n -1) where n is the number of dark frames. You will notice that this is the same relationship as inDECEMBER 2013
The histogram is probably the most important tool available in any astro-imaging application, both for capturing images and for processing them once captured. IMAGING TOOLBOX UPDATES JULY 2013 26th July 2013 in Imaging Toolbox. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
JULY 2013 – BLACKWATER SKIES A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the CHEAP DIY REMOTE CONTROLLED FLAT PANELIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
PHD GUIDING BASIC USE AND TROUBLESHOOTING PHD Guiding. – Test that PHD can connect to your camera and mount, and that it can send guide commands which are acted upon: Camera: Firstly connect to the camera by pressing the ‘camera’ icon on the left of the PHD tool bar. A dialog box will pop up and give you aMETEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If youBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UK DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) BLACKWATER SKIES: IMAGING TOOLBOX Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the CHEAP DIY REMOTE CONTROLLED FLAT PANELIMAGING TOOLBOX
Imaging Toolbox Updates July 2013. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
PHD GUIDING BASIC USE AND TROUBLESHOOTING PHD Guiding. – Test that PHD can connect to your camera and mount, and that it can send guide commands which are acted upon: Camera: Firstly connect to the camera by pressing the ‘camera’ icon on the left of the PHD tool bar. A dialog box will pop up and give you aMETEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If youBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UK DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) BLACKWATER SKIES: IMAGING TOOLBOX Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
NOVA V1405 CAS
V1405 Cas Annotated V1405 Cas. Acquisition: William Optics GT81, WO Flat 6AIII 0.8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik R, G, B 1.25″ Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator Pro Processing: PixInsight 1.8 Dates: March 30th 2021 Lights: R 5 x 60s, G 5 x 60s, B 5 x 60s, Unity Gain, -15CDarks: 300
BLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH AND Calculating f-ratios. The f-ratio of a camera lens or a telescope can be calculated very simply as: f-ratio = focal length / aperture. So for example, my old Meade SCT has a focal length of 2,000mm and it has an aperture of 203mm (i.e. the mirror has a diameter of 203mm). Therefore its f-ratio is 2,000 / 203 = f/9.85. THE ANDROMEDA GALAXY The Andromeda Galaxy – M31, M32 & M110. This is the Andromeda Galaxy, taken 14th/15th September 2013. The image consists of 6 x 30 minute subexposures. Read on below for technical details. This was shot when the moon was slightly over half full, but it was low in the sky and more than 90 degrees away from the target. PIXINSIGHT DSLR WORKFLOW So how many bias frames is enough? The solution is to resort to statistics (not the kind used by politicians, real sciency-type statistics!) I simply ran the PixInsight Statistics process, and selected the image that I was interested in. The figure we want is the ‘Standard Deviation’ which is a reasonably good indicator of how much random noise there is in an image (there are better onesDECEMBER 2013
The histogram is probably the most important tool available in any astro-imaging application, both for capturing images and for processing them once captured.SEPTEMBER 2013
Markarian’s Chain (bottom left) plus M87, M89 and M90. This is a small part of the huge Virgo Cluster of galaxies. The image is composed of 81 ten minute exposures (13.5 hours) taken over nine nights between 1st April and 4th May 2013. IMAGING TOOLBOX UPDATES JULY 2013 26th July 2013 in Imaging Toolbox. A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. Great for evaluating prospective investments in newequipment!
JULY 2013 – BLACKWATER SKIES A new update to the Imaging Toolbox has just been released with several great new features, including: Create, name and display multiple reticules simultaneously to compare the fields of view of different camera and telescope / lens combinations. LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the CHEAP DIY REMOTE CONTROLLED FLAT PANELMETEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If you PHD GUIDING BASIC USE AND TROUBLESHOOTING PHD Guiding. – Test that PHD can connect to your camera and mount, and that it can send guide commands which are acted upon: Camera: Firstly connect to the camera by pressing the ‘camera’ icon on the left of the PHD tool bar. A dialog box will pop up and give you aBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UKAPERTURE DIAMETER FORMULACAMERA APERTURE RATIOIMAGING TOOLBOX
Imaging Toolbox Unavailable Morning of Friday 13th Sept 2013. 9th September 2013 in Imaging Toolbox. Due to planned major electrical works at the CDS, all their services will be offline 08:00-12:00 CET on 13th September 2013. The Imaging Toolbox relies on Aladin Lite which is served up by the CDS, plus many of the sky surveys are alsohosted by
DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW It is the ratio of dark current fixed pattern to dark current noise that we are interested in increasing. Integrating multiple dark frames in to a master dark improves the SNR (ΔSNR) for each additional frame stacked as ΔSNR = √ n – √ (n -1) where n is the number of dark frames. You will notice that this is the same relationship as in LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the CHEAP DIY REMOTE CONTROLLED FLAT PANELMETEOR OBSERVING
Radio Meteor Scatter – Improved Spectrum Lab Conditional Actions. 12th January 2019 in Meteor Observing, Radio. I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If you PHD GUIDING BASIC USE AND TROUBLESHOOTING PHD Guiding. – Test that PHD can connect to your camera and mount, and that it can send guide commands which are acted upon: Camera: Firstly connect to the camera by pressing the ‘camera’ icon on the left of the PHD tool bar. A dialog box will pop up and give you aBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UKAPERTURE DIAMETER FORMULACAMERA APERTURE RATIOIMAGING TOOLBOX
Imaging Toolbox Unavailable Morning of Friday 13th Sept 2013. 9th September 2013 in Imaging Toolbox. Due to planned major electrical works at the CDS, all their services will be offline 08:00-12:00 CET on 13th September 2013. The Imaging Toolbox relies on Aladin Lite which is served up by the CDS, plus many of the sky surveys are alsohosted by
DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW It is the ratio of dark current fixed pattern to dark current noise that we are interested in increasing. Integrating multiple dark frames in to a master dark improves the SNR (ΔSNR) for each additional frame stacked as ΔSNR = √ n – √ (n -1) where n is the number of dark frames. You will notice that this is the same relationship as in LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
IMAGING TOOLBOX INSTRUCTIONS The manufacturer name. The camera or scope model. For scopes, the aperture and focal length of the scope, both in mm. For cameras, the horizontal and vertical size of one pixel in µm, the horizontal and vertical size of the active imaging area of the chip in mm and the horizontal and vertical resolution of the active imaging area inpixels.
NOVA V1405 CAS
V1405 Cas Annotated V1405 Cas. Acquisition: William Optics GT81, WO Flat 6AIII 0.8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik R, G, B 1.25″ Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator Pro Processing: PixInsight 1.8 Dates: March 30th 2021 Lights: R 5 x 60s, G 5 x 60s, B 5 x 60s, Unity Gain, -15CDarks: 300
ROSETTE NEBULA IN HSO The Rosette Nebula (C49) is an emission nebula in the constellation of Monoceros. Rosette Nebula in HSO. Acquisition: Skywatcher ED80 DS Pro, Skywatcher 0.86x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik Ha, OIII, SII 1.25″ Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator Pro Processing: PixInsight 1.8 Dates: Dec. 26-27th 2017 BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH AND Calculating f-ratios. The f-ratio of a camera lens or a telescope can be calculated very simply as: f-ratio = focal length / aperture. So for example, my old Meade SCT has a focal length of 2,000mm and it has an aperture of 203mm (i.e. the mirror has a diameter of 203mm). Therefore its f-ratio is 2,000 / 203 = f/9.85. BUILDING A SMALL IMAGING OBSERVATORY As previously noted, this should be slightly higher than the rear wall cap by a few cm. Wall and door frame construction. The inside of the half wall and inside of the top frame were clad in OSB in the same manner as the other walls. The inner of the door frame was faced with 20.5 x 94 mm planed timber using 45 degree mitre joints at thecorners.
PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: BUILDING A SMALL IMAGING OBSERVATORY The catches were screwed to the inside of the moving roof chassis and the fasteners to the walls. The reach of the fasteners can be adjusted by screwing the metal hooks in or out of the body to suit. Don’t over-tighten or this will warp the roof chassis out of shape over time, but equally you need to ensure they are tight enough to prevent OBSERVATORY PLANNING AND GERMAN EQUATORIAL MOUNTS To transfer this to your observatory plans, you just need to draw a circle with a radius of R3 that is centred on the intersection of the mount RA and Dec axes. This will work for both plan and elevation views. Anything on the plan that protrudes in to theSEPTEMBER 2013
Markarian’s Chain (bottom left) plus M87, M89 and M90. This is a small part of the huge Virgo Cluster of galaxies. The image is composed of 81 ten minute exposures (13.5 hours) taken over nine nights between 1st April and 4th May 2013. LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the CHEAP DIY REMOTE CONTROLLED FLAT PANELBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 PHD GUIDING BASIC USE AND TROUBLESHOOTING PHD Guiding. – Test that PHD can connect to your camera and mount, and that it can send guide commands which are acted upon: Camera: Firstly connect to the camera by pressing the ‘camera’ icon on the left of the PHD tool bar. A dialog box will pop up and give you a BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UKAPERTURE DIAMETER FORMULACAMERA APERTURE RATIO DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: PIXINSIGHT DSLR WORKFLOW It is the ratio of dark current fixed pattern to dark current noise that we are interested in increasing. Integrating multiple dark frames in to a master dark improves the SNR (ΔSNR) for each additional frame stacked as ΔSNR = √ n – √ (n -1) where n is the number of dark frames. You will notice that this is the same relationship as in BLACKWATER SKIES: IMAGING TOOLBOXBLACKWATER SKIES IMAGING TOOLBOXBLACKWATER IMAGINGBLACKWATER STATE PARK SLED RUN Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off LIVE SKY – BLACKWATER SKIES Live Sky – Blackwater Skies. Live Sky 31 May 2021 08:10:31 UTC.videocam.
ASTRO DIY – BLACKWATER SKIES Astro DIY. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the CHEAP DIY REMOTE CONTROLLED FLAT PANELBLACKWATER SKIES
Scope: Lunt LS60THa/B1200CPT, 2x Barlow Camera: ZWO ASI174MM, FireCapture Mount: Sky-Watcher NEQ6, EQMod Processing: AutoStakkert! 2, PixInsight 1.8, best 25% of 500 PHD GUIDING BASIC USE AND TROUBLESHOOTING PHD Guiding. – Test that PHD can connect to your camera and mount, and that it can send guide commands which are acted upon: Camera: Firstly connect to the camera by pressing the ‘camera’ icon on the left of the PHD tool bar. A dialog box will pop up and give you a BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH ANDSEE MORE ON BLACKWATERSKIES.CO.UKAPERTURE DIAMETER FORMULACAMERA APERTURE RATIO DIY SOLAR SCINTILLATION SEEING MONITOR (SSSM) PIXINSIGHT DSLR WORKFLOW In fact the noise in the master bias frame is proportional to the number of bias frames stacked. You can plot the SNR improvement (ΔSNR) of stacking one more frame as ΔSNR = √ n – √ (n -1) where n is the number of bias frames. I’ve plotted this below so you can see the direct link between theory and empirical evidence: PIXINSIGHT DSLR WORKFLOW It is the ratio of dark current fixed pattern to dark current noise that we are interested in increasing. Integrating multiple dark frames in to a master dark improves the SNR (ΔSNR) for each additional frame stacked as ΔSNR = √ n – √ (n -1) where n is the number of dark frames. You will notice that this is the same relationship as in BLACKWATER SKIES: IMAGING TOOLBOXBLACKWATER SKIES IMAGING TOOLBOXBLACKWATER IMAGINGBLACKWATER STATE PARK SLED RUN Adding a scaleable, rotating reticule (eg Al's reticule (freeware)) would help confirm target stars. Postion of cross-wire centre, taken from the reticule could allow off IMAGING TOOLBOX INSTRUCTIONS The manufacturer name. The camera or scope model. For scopes, the aperture and focal length of the scope, both in mm. For cameras, the horizontal and vertical size of one pixel in µm, the horizontal and vertical size of the active imaging area of the chip in mm and the horizontal and vertical resolution of the active imaging area inpixels.
NOVA V1405 CAS
V1405 Cas Annotated V1405 Cas. Acquisition: William Optics GT81, WO Flat 6AIII 0.8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik R, G, B 1.25″ Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator Pro Processing: PixInsight 1.8 Dates: March 30th 2021 Lights: R 5 x 60s, G 5 x 60s, B 5 x 60s, Unity Gain, -15CDarks: 300
BASICS PART 1: UNDERSTANDING APERTURE, FOCAL LENGTH AND Calculating f-ratios. The f-ratio of a camera lens or a telescope can be calculated very simply as: f-ratio = focal length / aperture. So for example, my old Meade SCT has a focal length of 2,000mm and it has an aperture of 203mm (i.e. the mirror has a diameter of 203mm). Therefore its f-ratio is 2,000 / 203 = f/9.85. ROSETTE NEBULA IN HSO The Rosette Nebula (C49) is an emission nebula in the constellation of Monoceros. Rosette Nebula in HSO. Acquisition: Skywatcher ED80 DS Pro, Skywatcher 0.86x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik Ha, OIII, SII 1.25″ Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator Pro Processing: PixInsight 1.8 Dates: Dec. 26-27th 2017 BUILDING A SMALL IMAGING OBSERVATORY As previously noted, this should be slightly higher than the rear wall cap by a few cm. Wall and door frame construction. The inside of the half wall and inside of the top frame were clad in OSB in the same manner as the other walls. The inner of the door frame was faced with 20.5 x 94 mm planed timber using 45 degree mitre joints at thecorners.
BUILDING A SMALL IMAGING OBSERVATORY The pier foundation and pier are constructed from concrete, as are the shallow observatory foundations. I decided to use bags of ready-mixed concrete for the job. Mixing concrete from bulk bags of cement and ballast would certainly be cheaper, but moving and storing them would have been difficult for me. Individual bags of ready-mix are much PIXINSIGHT DSLR WORKFLOW So how many bias frames is enough? The solution is to resort to statistics (not the kind used by politicians, real sciency-type statistics!) I simply ran the PixInsight Statistics process, and selected the image that I was interested in. The figure we want is the ‘Standard Deviation’ which is a reasonably good indicator of how much random noise there is in an image (there are better ones BUILDING A SMALL IMAGING OBSERVATORY The catches were screwed to the inside of the moving roof chassis and the fasteners to the walls. The reach of the fasteners can be adjusted by screwing the metal hooks in or out of the body to suit. Don’t over-tighten or this will warp the roof chassis out of shape over time, but equally you need to ensure they are tight enough to prevent OBSERVATORY PLANNING AND GERMAN EQUATORIAL MOUNTS To transfer this to your observatory plans, you just need to draw a circle with a radius of R3 that is centred on the intersection of the mount RA and Dec axes. This will work for both plan and elevation views. Anything on the plan that protrudes in to theSEPTEMBER 2013
Markarian’s Chain (bottom left) plus M87, M89 and M90. This is a small part of the huge Virgo Cluster of galaxies. The image is composed of 81 ten minute exposures (13.5 hours) taken over nine nights between 1st April and 4th May 2013.NAVIGATION
BLACKWATER SKIES
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AddThis Sharing Buttons Share to FacebookFacebookShare to TwitterTwitterShare to PrintPrintShare to EmailEmailShare to MoreAddThis16 LBN552 AND OTHER DUSTY STUFF 25th January 2020 in Images, Nebulae
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LBN552 appears as a small orange patch to the lower left of this image, with dark dust and reflection nebulae from the borders of Cepheus, Ursa Minor and Draco. Acquisition: William Optics GT81, WO Flat 6AIII 0.8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik LRGB 1.25″ Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6,EQMod, Sequence
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RADIO METEOR SCATTER – IMPROVED SPECTRUM LAB CONDITIONAL ACTIONS 12th January 2019 in Meteor Observing,
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I have been experimenting with meteor detection using radio forward scatter from the GRAVES transmitter and have developed an improved set of conditional actions for identifying and logging meteor events using Spectrum Lab. If you’re interested in trying this for yourself, then everything you need to get started is explained in a couple ofarticles
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M31 – THE ANDROMEDA GALAXY 3rd January 2018 in Galaxies, Images
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The Andromeda Galaxy is our nearest (big) galactic neighbour, at a distance of 2.5 million light years. It is about twice the size of our own Milky Way galaxy and the two are expected to merge in to a single galaxy in about 4.5 billion years time. Acquisition: Sky-Watcher Evostar 80ED DS-Pro, Sky-Watcher 0.85x reducer, ZWOASI1600MM-Cool,
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THE CYGNUS WALL
30th November 2017 in Images, Nebulae
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The Cygnus Wall is part of the North America Nebula (NGC7000). Â It is a huge cloud of ionized Hydrogen gas estimated to be 1,600 light years away and the location of some intense star formation. The darker region to the right of this image is not the empty background of space; we are looking atContinue Reading
BUILDING A SMALL IMAGING OBSERVATORY – FINISHING TOUCHES 25th November 2017 in Astro DIY, Observatories
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This entry is part 8 of 8 in the series A Small Imaging Observatory It’s been a long haul, but we’re almost there. In this final part, there are just a few minor steps to complete the observatory. < Building a Small Imaging Observatory – RoofContinue Reading
BUILDING A SMALL IMAGING OBSERVATORY – ROOF 25th September 2017 in Astro DIY, Observatories
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This entry is part 7 of 8 in the series A Small Imaging Observatory In this part of the series, I will cover construction of the roof. This is the most complex part of the structure and it required a bit of trial and error to create something workable. The Roof Chassis There are various options for making a workable roll-off mechanism, but I settled on using V-Groove steelContinue Reading
BUILDING A SMALL IMAGING OBSERVATORY – DOOR 19th September 2017 in Astro DIY, Observatories
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This entry is part 6 of 8 in the series A Small Imaging Observatory In this post, I will tackle the door frame and door. The construction method is the same as for the other three walls, but slightly more involved to ensure the door is secure and watertight. The Fourth Wall and Door Frame The first step in the construction of the fourth wallwas to add a
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BUILDING A SMALL IMAGING OBSERVATORY – WALLS 16th September 2017 in Astro DIY, Observatories
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This entry is part 5 of 8 in the series A Small Imaging Observatory In this post the observatory is starting to take shape. We will finish the floor and build the plain walls (I’ll cover the wall with the door frame later). The Floor The first step was to lay the floor which was made from a sheet of 11mm Oriented Strand Board (OSB). I usedbasic OSB2,
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BUILDING A SMALL IMAGING OBSERVATORY – FOUNDATIONS 15th September 2017 in Astro DIY, Observatories
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This entry is part 4 of 8 in the series A Small Imaging Observatory In this post, we’ll get started on the foundations and framework for my roll-off roof back garden observatory. In the previous post, I finished building the telescope pier and now it’s time to enclose it. The Framework When planning this observatory, I considered a number of construction options. Many people buy a wooden, plastic orContinue Reading
BUILDING A SMALL IMAGING OBSERVATORY – THE PIER 11th September 2017 in Astro DIY, Observatories
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This entry is part 3 of 8 in the series A Small Imaging Observatory In this post, I’ll explain how I finished building the concrete pier for my roll-off roof back garden observatory. In the previous post, I covered the groundwork for the pier, and this time I will explain the process of building it. In the Mix The pier foundation and pier are constructed from concrete, as areContinue Reading
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