Short update from last night: I put more weight on the mirror side of the Newtonian. After that, the guiding calibration worked far better and the problem with guiding after focusing was also solved :-)

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Alfred, Hy, thank you for your comments. So I will try the next time to adjust balancing and will try the guide limits.

One last question: when calibrating there are movements in RA "in" and "out", also for DEC there is "in" and "out". Can someone tell me, which is north/south or east/west? I'm asking, because I used this in PHD2 to adjust balancing. In my case the DEC "in" movement was a little bit unnormal (thats why I think its a balancing issue). This would help for adjusting weight in the right direction. PHD2 tells you if the movement is south or north...

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Polar alignment was according to PHD2logviewer 3' or 0.3' depending on the side pier, so not that bad. Guiding itself was between 0.5" rms and 0.9", depending on seeing that night.

If I think further about the issue, perhaps 0.3' is too good and/or backlash maybe the problem. If the weather is ok tonight, I will change balancing a bit. And I will have a look on the "max response" value, but it should be on default value.

And you are right, it should be no problem for the mount to get it back.

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Hi Alfred,
thank you for the comment. I'm aware of that setting. The problem was, that the settling took nearly the whole 300s of the image. I had set the aggresivity of RA and DEC to I think 60 or 70% so it took a while to get the guide stars back to where Kstars thought they should be :-(

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Hi all,
last night I encountered the following problem:

I set in the scheduler focusing after every 60 minutes. Focusing worked fine, but the guiding star moved some arc seconds during the focusing procedure, but was still in the green square. This leads to the problem, that after restart guiding and subsequent starting of the new image the guider tried to get the guiding star at the "right" position. This leads to elongated stars (and therefore bad pictures) after every focusing run! I'm guiding with OAG, so last night I had a focal length of 1500mm.

Would it be possible to handle guiding after focusing the same as after dithering? After dithering the "delta" of the guiding star is set to zero if I'm correct.

My rig: EQ8-R, 12" F5 Newton, Guiding with OAG, Kstars 3.6.9, INDI 2.0.6

Thanks a lot.

Jürgen

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JuergenN replied to the topic 'Number of saturated pixels' in the forum. 3 weeks ago

I'm running 3.6.9, but that feature was implemented way earlier, at least last year.

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JuergenN replied to the topic 'Number of saturated pixels' in the forum. 3 weeks ago

I think this is already implemented:



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Hello all,
last night I had a starnge behaviour: I run a single job in the scheduler, which worked well untill 23:50. The end of the job should have been around 00:50. It seems that a alignment due to image delta was run at 23:50, which couldnt be solved (the light frame just before was ok, I had some clouds in the sky). The session was stopped, but the mount wasnt moved to park position, even after regular ending time of the job. I had to restart Kstars to park the mount.

Two questions:
- what happend during the alignment process?
- why wasn't it possible to park the mount without restart?

I attach the analyze- and the log file. The alignment issue was around 23:50

Thank you for helping.

File Attachment:

File Name: log_16-07-29.zip
File Size: 2,188 KB

File Attachment:

File Name: ekos-2024-03-02T16-07-48.analyze.zip
File Size: 85 KB


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Hello all,
it seems that the twilight is according to a sun dip of 18°. I found in the setting to set dusk and dawn offsets. Is it possible to set the sun dip to lets say 15°? For me that would be a nice feature in the summer where we have times with no twilight in EKOS. I always start my session at a sun dip of 15°...

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Its all in seperate windows. Have alook at John's youtube video:
www.youtube.com/watch?v=x2HY2TTOdcs

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I just tried using simulators. I installed GSC and can get a picture with stars when using the capture tab. Also the guiding / guiding calibration works. So I tried the alignment tab (all settings are default). Picture was taken, but when starting plate solving Kstars suddenly crashes. I started with ekosdebugger, I attach the log.

I'm using Opensuse 15.5 with latest updates.

Thanks for helping.

File Attachment:

File Name: kstars_logs_2024-02-11T16-27-38.zip
File Size: 7 KB


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JuergenN replied to the topic 'Phd2 Dithering does not work' in the forum. 2 months ago

When I used Phd2 for guiding long time ago I stumbled also over this behaviour. If I remember correctly you first have to start PHD2 then Kstars (or maybe the other way round). And you have to look in the "guiding" tab that guiding is "connected", sometimes you have to klick on the "connect" button.

Now I use the build-in guider and I'm happy with it.

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