Quote:
Originally Posted by gregbradley
Is that what you told your wife?? 
15 minute subs is probably good anyway. If you have dark skies then I would go as long as tracking and cloud allows. 15 minutes is more to invest if its cloudy and you may wind up with less data than if you used 10 minutes.
Optimum exposure length is an interesting topic. SBIG has a calculator on their site for that as I recall.
Although it may not be 100% accurate for you as your read noise etc may be a tad different.
Greg. |
The beauty is my wife has no interest in how much I spend. I pay my way and she pays hers. We both have our own little empires and she does not want to know how much I spend on astronomy. She is a great woman for many reasons but this is one of them.
I could go 20 minutes but I wonder about star saturation?? I will take a look at SBIG though.
