NGC 281 AutoStretch · 2023-01-11

The Pacman Nebula NGC 281 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 about 9200 ly away.

The Pacman Nebula NGC 281 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 about 9200 ly away. Edward Emerson Barnard discovered the nebula in August 1883, describing it as "a large faint nebula, very diffuse.

A total of 5 hours exposure.

Exposure	15@1200 sec
ISO	1600
Camera	Nikon Z7 [5440x3616] in DX mode
Optics	Skywatcher Esprit 120mm Refractor
Filter	Radian Triad Ultra Quad-Band Narrowband Filter
Guiding	Phd2 using a ZWO 224MC on an Orion 60x240mm Guide scope
Controller	Images taken using Kstars on an Quieter3C
Scale	1.066 arcsec/pixel
Focuser Temperature	-8.0 C
Location	Lower Sackville, Nova Scotia.
Date	2023-01-11
PixInsight Processing	WeightedBatchPreprocessing Script Dynamic Crop Background Extractor BlurXTerminator HistogramTransform NoiseXTerminator CurvesTransformation