Variable Stars with SharpCap 3.1
Posted: Fri Feb 09, 2018 10:52 pm
Hi Robin,
I've gotten to the stage where I am ready to test out my new knowledge. For what I need to do I have my old ways but for this application that would be labor intensive. I'd like to describe what I need to have done and perhaps SC 3.1 can expedite. Keep in mind I have never tried Live Stack so please excuse my ignorance:
I need to determine exposure. Gain and black level are predetermined to be 100 and 0, respectively, that are not subject to change. In computer terms I need to execute a 'binary search' algorithm. There will be a comparison star of known magnitude that must read 2340 ADU (out of 4096). That value of 2340 must be the maximum pixel value of the Airy disk in a stack of 10 frames.
This does not have to be super-precise. I know that there will still be noise in a 10 frame stack but if I can see that it looks like it will converge on or about 2340 I would be happy.
What do you think?
Thanks,
Brian
I've gotten to the stage where I am ready to test out my new knowledge. For what I need to do I have my old ways but for this application that would be labor intensive. I'd like to describe what I need to have done and perhaps SC 3.1 can expedite. Keep in mind I have never tried Live Stack so please excuse my ignorance:
I need to determine exposure. Gain and black level are predetermined to be 100 and 0, respectively, that are not subject to change. In computer terms I need to execute a 'binary search' algorithm. There will be a comparison star of known magnitude that must read 2340 ADU (out of 4096). That value of 2340 must be the maximum pixel value of the Airy disk in a stack of 10 frames.
This does not have to be super-precise. I know that there will still be noise in a 10 frame stack but if I can see that it looks like it will converge on or about 2340 I would be happy.
What do you think?
Thanks,
Brian