Processing

Hardware and software setups, autoguiding and plate solving parameters, etc..
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John Monroe
Posts: 39
Joined: Thu Dec 06, 2018 7:17 pm

Fri Jul 19, 2019 6:07 pm

Screenshot (6).png
Hi, I am trying to batch register and I come up with this error. To my untrained eye my tracking looks good. If not then it is a tracking issue?
Thank you, John.
John Monroe
Posts: 39
Joined: Thu Dec 06, 2018 7:17 pm

Fri Aug 02, 2019 10:47 pm

Any ideas?
rottielover
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Sat Aug 03, 2019 9:14 pm

Hi John,

The stars in your image look a little odd to me. Were you having tracking issues that run? Any issues with Focus or dew buildup that night? Anything else happen that could have been unusual, maybe stiff winds ?
Hamza Touhami
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Tue Aug 06, 2019 2:28 pm

was focus sharp that night John? can you measure how big these stars are?
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Hyperion-Astronomy.com
John Monroe
Posts: 39
Joined: Thu Dec 06, 2018 7:17 pm

Tue Aug 06, 2019 6:40 pm

How would I measure the stars? Is that covered in one of your videos? If so direct me so you don't have to explain here. If the focus is bad would that give me the error message shown?
Hamza Touhami
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Fri Aug 09, 2019 9:49 am

that would be a great topic for a short tutorial, i will work on it. In the meantime, just right click on a star and choose the top option. please post a screenshort of the popup you are presented with
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John Monroe
Posts: 39
Joined: Thu Dec 06, 2018 7:17 pm

Tue Aug 27, 2019 11:17 pm

Screenshot (8).png
I apologize for not responding for so long. Here is a sample of a star I clicked on.
John
rottielover
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Wed Aug 28, 2019 11:25 am

Hey John,

I was looking at the screenshot and wanted to pass along some things I learned at one of the hangout sessions. If you look at the right side of that window you will see some Fwhm numbers and an L/H %.

Full width half max is basically how focused the closer to 0/1 the better. Your numbers are around 12-13. That tells me that you were actually a bit out of focus.

The L/H % is a measure of the star elongation or how round it is. The lower the % the more round (better tracking). So your % is fairly low so your tracking doesn’t appear to be that bad.

So my uneducated wild guess here I could very well be wrong about everything I am saying here so grain of salt. I’m wondering if your focus changed over time enough to throw off the process?

Can you measure stars from a few more subs?
John Monroe
Posts: 39
Joined: Thu Dec 06, 2018 7:17 pm

Wed Aug 28, 2019 3:23 pm

I did try on some other stars I will try more on several more subs. Maybe this is why I have trouble batch registering pictures because they are too out of focus with each other?
John
John Monroe
Posts: 39
Joined: Thu Dec 06, 2018 7:17 pm

Wed Aug 28, 2019 10:37 pm

Screenshot (9).png
Here is another example. My numbers are not good. I will have to work on focusing better.
rottielover
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Thu Aug 29, 2019 8:56 am

As part of the stacking and registration process you can set limits on these two numbers and it will automatically reject frames that are too far out.

I think this might be covered in Hamza’s YouTube tutorial I’ll have to look when I get a chance.
Hamza Touhami
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Thu Aug 29, 2019 2:15 pm

I think you should join us live John, this a great opportunity to learn. The pre-processing process limits the frames to a give threshold, you set, for elongation and size.
Hamza Touhami | Site Administrator
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John Monroe
Posts: 39
Joined: Thu Dec 06, 2018 7:17 pm

Thu Aug 29, 2019 10:51 pm

How and when would I join you live?
rottielover
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Location: Missouri, USA
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Sun Sep 01, 2019 6:28 pm

Google Hangouts link: https://hangouts.google.com/call/0GaZat ... pdG95BAEEE

I believe these are just about every Sat or Sun night starting around 7:30pm MT 8:30pm CT 9:30 ET (US)
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