Allow Guiding and Recenter in Deep Sky live stack

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EduardoG
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Joined: Sat Aug 12, 2023 11:57 pm

Allow Guiding and Recenter in Deep Sky live stack

#1

Post by EduardoG »

Hi Robin,
Could you allow 'Monitor Guiding' and 'Enable Recenter' to be enabled at the same time in 'Deep Sky's Live Stacking 'Guiding' tab? The use-case I have in mind is: Guide with PHD2 and set the mount to stop tracking at 0 degrees from the meridian. After tracking stops, PHD2 stops guiding (star lost) and the image starts to drift. If 'Recenter when drift exceeds xx' is enabled, Sharpcap would (might?) do a flip, issue a GOTO, recenter the image, tell the mount to start tracking and PHD2 to resume guiding.

Would this actually work?

Thank you for all your work!
Eduardo
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Re: Allow Guiding and Recenter in Deep Sky live stack

#2

Post by admin »

Hi Eduardo,

my guess is that this won't work (you could test by running without guiding to see if the flip happens/works).

I think it won't work because

1) You might end up misaligned by more than the full width of the image after the flip - the current recentering requires the offset to be relatively small
2) Even if you end up with a small offset, the image is rotated by 180 degrees after the flip, and the recentering does not take account of this, so will probably move the wrong way (by the right amount), and then repeatedly do that.

I do have some code partially written that replaces the current recentering with something that *would* work in this scenario, but I have not had the opportunity to test this yet, so it is currently disabled. It's on the todo list though ;)

cheers,

Robin
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