https://skyhound.com/forums/ Mon, 11 May 2026 23:01:38 +0000 MyBB https://skyhound.com/forums/showthread.php?tid=3427 Tue, 21 Apr 2026 21:54:14 -0400 Mystic Hill]]> https://skyhound.com/forums/showthread.php?tid=3427
If I open and Imaging Project and go to Exposure Goals and Filters there are two places to describe sub exposures.  ON the left I had set Sub exposures to 1 minute (plop down scope, no guiding, best I can do). On the right I customized the exposure for each filter thinking that was necessary to get the objective "Ha-R-G-B composite - 8 hr total exposure time - composite SNR 25 - color SNR 25". There I left sub exposure to Auto. I made a schedule and saved the sequence to import into SGPro.  The result is all exposures are zero, not my expectation.

Changing the filter custom exposure time to 1 minute produced the anticipated result.

I guess I was thinking that if I had left "Auto" for the Custom exposure the program would calculated and used a non-zero number for exposure or maybe used the one minute setting from the left side.

Roy]]>
If I open and Imaging Project and go to Exposure Goals and Filters there are two places to describe sub exposures.  ON the left I had set Sub exposures to 1 minute (plop down scope, no guiding, best I can do). On the right I customized the exposure for each filter thinking that was necessary to get the objective "Ha-R-G-B composite - 8 hr total exposure time - composite SNR 25 - color SNR 25". There I left sub exposure to Auto. I made a schedule and saved the sequence to import into SGPro.  The result is all exposures are zero, not my expectation.

Changing the filter custom exposure time to 1 minute produced the anticipated result.

I guess I was thinking that if I had left "Auto" for the Custom exposure the program would calculated and used a non-zero number for exposure or maybe used the one minute setting from the left side.

Roy]]> https://skyhound.com/forums/showthread.php?tid=3403 Sun, 15 Feb 2026 17:16:02 -0500 Marie Lott]]> https://skyhound.com/forums/showthread.php?tid=3403 Thanks.
Marie]]> Thanks.
Marie]]> https://skyhound.com/forums/showthread.php?tid=3402 Sat, 14 Feb 2026 10:23:19 -0500 astrobrandx]]> https://skyhound.com/forums/showthread.php?tid=3402 https://copilot.microsoft.com/ can be used to digitise screenshots of published charts of filter transmission and camera QE.  Using local versions of copilot wouldn't let me upload the jpg or png files but the web version did and can provide a simple CSV file.
I usesd the following question:   "Digitise an image of a chart and create a csv format file tabulating the values" and then uploaded the image file.  Of course you need to check the values against the chart and then maybe normalise but I think it did a good job.  
Cheers, Les

  copilot 1.png (Size: 118.63 KB / Downloads: 4)

  copilot 2.png (Size: 91.28 KB / Downloads: 5) ]]> https://copilot.microsoft.com/ can be used to digitise screenshots of published charts of filter transmission and camera QE.  Using local versions of copilot wouldn't let me upload the jpg or png files but the web version did and can provide a simple CSV file.
I usesd the following question:   "Digitise an image of a chart and create a csv format file tabulating the values" and then uploaded the image file.  Of course you need to check the values against the chart and then maybe normalise but I think it did a good job.  
Cheers, Les

  copilot 1.png (Size: 118.63 KB / Downloads: 4)

  copilot 2.png (Size: 91.28 KB / Downloads: 5) ]]> https://skyhound.com/forums/showthread.php?tid=3394 Sat, 24 Jan 2026 15:53:29 -0500 astrobrandx]]> https://skyhound.com/forums/showthread.php?tid=3394 https://skyhound.com/forums/showthread.php?tid=3381 Wed, 17 Dec 2025 11:58:54 -0500 orionbelt]]> https://skyhound.com/forums/showthread.php?tid=3381
I am trying to create an imaging system on SkyTools Imaging for my new smart telescope Vespera Pro to get an idea of the SN ratios for exposures but I am getting very off results. The system is a 50mm f/5 quadruplet with a Sony IMX676 Color CMOS chip. The usual subexposure is 10 sec but can change up to 30 sec but is not recommended because causes tracking problems, the systems basically stacks subexposures and tracks on the fly, and the usual gain 20 even you can manually change it up to 27. I am trying to estimate the ADU for the gain and I think that is what I am doing wrong. I look for information on the chip online and I estimate a 2.3 e/ADU, reading noise of 4 and full well of 74000.

I will appreciate some help figuring out the sensor parameters or if someone else had success creating a imaging system for this or similar telescope let me know that they did.

Clear skies,

Carles]]>
I am trying to create an imaging system on SkyTools Imaging for my new smart telescope Vespera Pro to get an idea of the SN ratios for exposures but I am getting very off results. The system is a 50mm f/5 quadruplet with a Sony IMX676 Color CMOS chip. The usual subexposure is 10 sec but can change up to 30 sec but is not recommended because causes tracking problems, the systems basically stacks subexposures and tracks on the fly, and the usual gain 20 even you can manually change it up to 27. I am trying to estimate the ADU for the gain and I think that is what I am doing wrong. I look for information on the chip online and I estimate a 2.3 e/ADU, reading noise of 4 and full well of 74000.

I will appreciate some help figuring out the sensor parameters or if someone else had success creating a imaging system for this or similar telescope let me know that they did.

Clear skies,

Carles]]> https://skyhound.com/forums/showthread.php?tid=3362 Wed, 12 Nov 2025 21:47:18 -0500 Mystic Hill]]> https://skyhound.com/forums/showthread.php?tid=3362
Roy Wellington]]>
Roy Wellington]]> https://skyhound.com/forums/showthread.php?tid=3353 Sat, 01 Nov 2025 17:50:05 -0400 richaraj]]> https://skyhound.com/forums/showthread.php?tid=3353 I have Skytools Imaging Version 4.1.11.18
When I change the date of local evening to "Tonight" under Target Selection, Skytools simply closes.
I am able to select a date in the Calendar, and Skytools updates its self normally.
Can you think what could be causing this?

Thank you
Adrien Richardson]]> I have Skytools Imaging Version 4.1.11.18
When I change the date of local evening to "Tonight" under Target Selection, Skytools simply closes.
I am able to select a date in the Calendar, and Skytools updates its self normally.
Can you think what could be causing this?

Thank you
Adrien Richardson]]> https://skyhound.com/forums/showthread.php?tid=3301 Mon, 21 Jul 2025 16:07:29 -0400 tomdean]]> https://skyhound.com/forums/showthread.php?tid=3301
Y axis object. X axis time, with midnight in the center.

For selected objects, a bar showing visibility. i.e. the bar starts at rise time and ends at set time.

Tom Dean]]>
Y axis object. X axis time, with midnight in the center.

For selected objects, a bar showing visibility. i.e. the bar starts at rise time and ends at set time.

Tom Dean]]> https://skyhound.com/forums/showthread.php?tid=3295 Sat, 12 Jul 2025 15:55:29 -0400 PDC Skies]]> https://skyhound.com/forums/showthread.php?tid=3295 https://skyhound.com/forums/showthread.php?tid=3270 Sat, 17 May 2025 08:02:14 -0400 mehensley123]]> https://skyhound.com/forums/showthread.php?tid=3270
656.3 486.1
495.9 500.7
435.8 546.1 577 578.1
598 589.6 615.4 616.1]]>
656.3 486.1
495.9 500.7
435.8 546.1 577 578.1
598 589.6 615.4 616.1]]> https://skyhound.com/forums/showthread.php?tid=3211 Sat, 30 Nov 2024 23:09:09 -0500 BillT]]> https://skyhound.com/forums/showthread.php?tid=3211
I just acquired ST4.1 and I am working my way through the initial setup process.  I runned into a problem with the filter set up portion, some of my filters are not listed and I cannot find the txt file with the information. If someone could share then it would be greatly appreciated. I did search the forum as suggested but no luck. I need:
1-Optolong red filter. I found a post for the LRGB txt files but it is missing the red filter.
2-Optolong Radian Triad Ultra Narrowband Filter
3-IDAS NBZ II.

Also Greg mentions in his video  "Setting up an Imaging System in SkyTools 4" a future video of how to create your filters. I cannot find it either.

Thanks for your help,

Bill]]>
I just acquired ST4.1 and I am working my way through the initial setup process.  I runned into a problem with the filter set up portion, some of my filters are not listed and I cannot find the txt file with the information. If someone could share then it would be greatly appreciated. I did search the forum as suggested but no luck. I need:
1-Optolong red filter. I found a post for the LRGB txt files but it is missing the red filter.
2-Optolong Radian Triad Ultra Narrowband Filter
3-IDAS NBZ II.

Also Greg mentions in his video  "Setting up an Imaging System in SkyTools 4" a future video of how to create your filters. I cannot find it either.

Thanks for your help,

Bill]]> https://skyhound.com/forums/showthread.php?tid=3192 Fri, 01 Nov 2024 13:32:14 -0400 nickkohrn]]> https://skyhound.com/forums/showthread.php?tid=3192
I am new to SkyTools, and I am trying to identify how I can image a target using SHO filters for nebulosity and using RGB filter for star color. 

Is the best approach to create two projects for the target and configure the RGB project with fixed exposure times as seen in the attached screenshots, or is there a better way?


  nebulosity.png (Size: 180.81 KB / Downloads: 3)

  stars.png (Size: 190.63 KB / Downloads: 2)

Thank you,
Nick]]>
I am new to SkyTools, and I am trying to identify how I can image a target using SHO filters for nebulosity and using RGB filter for star color. 

Is the best approach to create two projects for the target and configure the RGB project with fixed exposure times as seen in the attached screenshots, or is there a better way?


  nebulosity.png (Size: 180.81 KB / Downloads: 3)

  stars.png (Size: 190.63 KB / Downloads: 2)

Thank you,
Nick]]> https://skyhound.com/forums/showthread.php?tid=3156 Thu, 22 Aug 2024 13:35:20 -0400 Vietti-Teppa]]> https://skyhound.com/forums/showthread.php?tid=3156 https://skyhound.com/forums/showthread.php?tid=3152 Tue, 13 Aug 2024 20:34:40 -0400 mike@lockwood.us.com]]> https://skyhound.com/forums/showthread.php?tid=3152
Although......the projects ( Eastern & Western Veil ) do not appear in the Scheduler Tab.
The projects are marked complete in the Observations Tab - so it makes sense for the projects not to show up in the Scheduler Tab. 

But why are these completed projects still showing up in the Target Selection Tab ? The Observations Tab indicates the projects are complete.

I have included screens shots for reference - hoping I would find the answer easily in this forum and something simple I am overlooking.

thank you in advance

  Scheduler.png (Size: 100.53 KB / Downloads: 7)

  Target Selection.png (Size: 121.16 KB / Downloads: 5)

  Observation Log.png (Size: 281.4 KB / Downloads: 5)

  Project Manager.png (Size: 260.86 KB / Downloads: 4) ]]>
Although......the projects ( Eastern & Western Veil ) do not appear in the Scheduler Tab.
The projects are marked complete in the Observations Tab - so it makes sense for the projects not to show up in the Scheduler Tab. 

But why are these completed projects still showing up in the Target Selection Tab ? The Observations Tab indicates the projects are complete.

I have included screens shots for reference - hoping I would find the answer easily in this forum and something simple I am overlooking.

thank you in advance

  Scheduler.png (Size: 100.53 KB / Downloads: 7)

  Target Selection.png (Size: 121.16 KB / Downloads: 5)

  Observation Log.png (Size: 281.4 KB / Downloads: 5)

  Project Manager.png (Size: 260.86 KB / Downloads: 4) ]]> https://skyhound.com/forums/showthread.php?tid=3127 Tue, 25 Jun 2024 17:42:23 -0400 mike@lockwood.us.com]]> https://skyhound.com/forums/showthread.php?tid=3127
Currently I am manually entering the filter, number of subs and exposure times into the Observation Tab.

This would save time as well as human errors


  Schedule .png (Size: 134.8 KB / Downloads: 3)

  Observations Log.png (Size: 190.92 KB / Downloads: 2)

See attachments]]>
Currently I am manually entering the filter, number of subs and exposure times into the Observation Tab.

This would save time as well as human errors


  Schedule .png (Size: 134.8 KB / Downloads: 3)

  Observations Log.png (Size: 190.92 KB / Downloads: 2)

See attachments]]>