shootting session meridian flip resync?

[cyrille.de.brebisson]

hello,

During a live stack, is there a way to detect that the mount did a flip and do a plate solve/resync?

Thanks and happy holiday,
Cyrille

[admin]

Hi Cyrille,

there is nothing designed to do that - the recenter option in the live stack guiding settings is aimed at keeping the mount pointing at the image (correcting for drift), but I think that will get confused after the flip due to the 180 degree rotation of the raw images - I certainly didn't write the code with that in mind.

You may be able to just use the 'plate solve and resync' tool (or the equivalent button in the mount control area), but that is a manual process. If you do that while the stack is paused then it should work I think, since that tool will request the plate solve information for the raw frame from the camera, not the stack you are looking at on screen.

cheers,

Robin

[cyrille.de.brebisson]

Happy holidays,

OK, so there is no way to handle that in an unattended way?

What is the "proper way" to handle a shooting session, unattended, with a meridian flip in the middle?
My system is only now getting "good enough" for such usage so I need to learn!

Cyrille

[admin]

Hi,

live stacking is not really designed to handle this sort of thing unattended - it's more designed as an interactive feature where people can see their deep sky images build up as it happens. For unattended imaging, the SharpCap sequencing tool is available, which has some rudimentary support for meridian flip operations, but nothing fully automatic.

I guess the most robust approach would be to use the sequencing tool, set it up to live stack into two separate stacks - one before and one after the flip, with the first stack being stopped and saved as the mount approaches the meridian and a new one started after a re-goto after the flip. Those two stacked images can then be further processed into a final 'super-stacked' image.

cheers,

Robin