PhotographerStephen D Pastor
Location of photoMayhill, New Mexico
Date/Time of photo5 Sept 2013
EquipmentTeleVue 140 f/5 refractor and SBIG ST2000xcm camera @ -15 degrees C on an Astro-Physics 1200 mount.
DescriptionNGC 281 is an emission nebula (H II region) in the constellation Cassiopeia. The nebula also contains the open cluster IC 1590, whose OB stars ionize the hydrogen, as well as several dark Bok globules. Image was a total of 3 hours 40 minutes integration time (22 x 10 min guided lights; 15 darks, 64 flats, 64 bias). Individual lights graded in Images Plus 5.0; Calibrated, registered, integrated, and processed in PixInsight 1.8, with final levels adjustment in Adobe Photoshop CC.