Sh 2-264 (Lambda Orionis)

Observing Site Burnsville
Date and time 2/24/2015 (1946-2138)
Lynds brightness 2 (est)
Sky Darkness 8
Sky Transparency good
Moon magnitude -9.6
Imaging Telescope 135mm Tamron DSLR lens @ f/4
FOV = 7.6 x 5.7 degrees
Imaging Camera ST-8300M
Acquisition Ha 12x600s
Calibration dark 12, bias 12, flat 20, flat dark 20