NGC 1999

Observing Site Burnsville
Date and time 1/23/2015 (2000-2355)
Lynds brightness 1
Sky Darkness 8
Sky Transparency good
Moon magnitude -6.8
Imaging Telescope 135mm Tamron SLR lens @ f/4,
image cropped from full field of 7.6 x 5.7 degrees
Imaging Camera ST-8300M
Acquisition Ha 9x600s
Calibration dark 15, bias 15