Quote:
Originally Posted by Somnium
interesting ... i didn't even realise the QHY9 was the same chip, that looks like a good camera. i would love to get into some science imaging, things like tracking occultations. does anyone know if there is software which can accurately track the brightness of individual stars ? and is it only available for certain cameras ?
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Yes (Tangra)
http://www.hristopavlov.net/ can be used to reduce your data and develop a light curve for asteroid occultations, typically using videos. Video is used to identify a fleeting drop or increase in magnitude. If the event is bright enough, up to 25 frames per second or time slices can be recorded. A newer cross platform version is being developed here:
http://www.hristopavlov.net/Tangra3/
Another older piece of software that can also do the job is Limovie
http://astro-limovie.info/
Occultations measurements are possible using a still capture CCD, but the longish download times limits the accuracy for timing critical events.
If you actually meant to get measurements for astrometry e.g. supernovas, variable stars then a mono CCD is great, even better if you run with UBVRI filters to get more scientific. Any number of programs can perform astrometry on your calibrated data.
Ted