DSO Pseudo-Lucky Imaging with Live Stacking
Posted: Fri Jun 03, 2022 8:38 pm
I've been in a recent discussion on CN regarding short subs and live stacking for EAA. Not exactly lucky imaging but perhaps more like "fortunate" imaging. This is the discussion thread.
https://www.cloudynights.com/topic/8264 ... p=11934147
The unknown, because I've not had a clear sky in days, is if short (1/2 to 1 second) subs can be live stacked with a small sensor (290) using restrictive FWHM and Brightness filters to cull bad frames. I plan to try this with a C11 Hyperstar (f/2) and the ASI290MM, which should be quite fast and sensitive. The rig is a CPC Alt-Az mount connected via a USB hub to the HP Pavilion laptop (i7 and Windows 10).
On a side note, the last time out with the QHY183C when running 10 second subs I was having some live stacking delays. There were instances of a good 30-50 second lag but there were no dropped frames. The stack count would just suddenly jump up by the number of delayed frames. The FWHM values would also lag and then update all at once.
https://www.cloudynights.com/topic/8264 ... p=11934147
The unknown, because I've not had a clear sky in days, is if short (1/2 to 1 second) subs can be live stacked with a small sensor (290) using restrictive FWHM and Brightness filters to cull bad frames. I plan to try this with a C11 Hyperstar (f/2) and the ASI290MM, which should be quite fast and sensitive. The rig is a CPC Alt-Az mount connected via a USB hub to the HP Pavilion laptop (i7 and Windows 10).
On a side note, the last time out with the QHY183C when running 10 second subs I was having some live stacking delays. There were instances of a good 30-50 second lag but there were no dropped frames. The stack count would just suddenly jump up by the number of delayed frames. The FWHM values would also lag and then update all at once.