I imaged NGC 281 on August 31, 2019. It is composed of 360 x 60s images.
NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way’s Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184, spanning over a larger area of 40 arcmin. A recent distance from radio parallaxes of water masers at 22 GHz made during 2014 is estimated it lies 2.82±0.20 kpc. (9200 ly.) from us. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.
Imaging Data:
Date: 8/31/19
Exposure= 60s x 360
Binning = 1×1
Gain = 120
Camera Temperature= 0 deg C
Filter= STC Astro Duo-Narrowband Filter
Camera = ASI294MC PRO in Hyperstar position