Exposure Time Calculator

Ever tried to figure out exactly how long your imaging session will take? I have. Doing the math in your head can be simple for sessions under an hour, but getting up to six hour sessions you can miscalculate and be out much longer than you anticipated. With this calculator, you’ll know exactly how long you need to wait for your session to be finished!

Note: This does not account for meridian flips or any issues with guiding and/or dithering.