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Contains:  NGC 281
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NGC 281 PacMan again, 


            Bret Waddington
NGC 281 PacMan again
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NGC 281 PacMan again

Technical card

Imaging telescopes or lenses:Stellarvue SVQ-100

Imaging cameras:ZWO ASI 183MC Pro

Mounts:Sky-Watcher EQ6-R Pro

Guiding telescopes or lenses:Orion Short Tube 80 (CT80)

Guiding cameras:ZWO ASI290MM mini

Software:PixInsight 1,8SGPPHD2Photoshop CC 2018

Filters:Optolong L-eNhance 2"

Dates:Oct. 18, 2019

Frames:Optolong L-eNhance 2": 89x120" (gain: 50.00) -10C bin 1x1

Integration: 3.0 hours

Darks: ~30

Flats: ~30

Bias: ~75

Avg. Moon age: 19.10 days

Avg. Moon phase: 80.19%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details job: 2997391

RA center: 0h 52' 55"

DEC center: +56° 39' 10"

Pixel scale: 0.851 arcsec/pixel

Orientation: 359.335 degrees

Field radius: 0.768 degrees

Resolution: 5409x3591

Locations: Home, Davis, Illinois, United States

Data source: Backyard


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.



Bret Waddington
License: None (All rights reserved)

Sky plot

Sky plot


NGC 281 PacMan again, 


            Bret Waddington

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