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Contains:  NGC 281, The star ηCas
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NGC 281 Pacman Nebula in Cassiopeia, 


            Chris Howard
NGC 281 Pacman Nebula in Cassiopeia
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NGC 281 Pacman Nebula in Cassiopeia

Technical card

Dates:June 8, 2019

Frames: 90x240"

Integration: 6.0 hours

Avg. Moon age: 5.50 days

Avg. Moon phase: 30.50%

Basic astrometry details job: 2831294

RA center: 0h 51' 11"

DEC center: +56° 56' 6"

Pixel scale: 5.930 arcsec/pixel

Orientation: 132.829 degrees

Field radius: 1.124 degrees

Resolution: 1200x1200

Locations: Home Observatory, North Hampton, New Hampshire, United States

Data source: Backyard


NGC 281 Pacman Nebula - I'm finally getting around to processing a bunch of data I gathered over the last month and a half. Pacman is one my favorite nebulae in Cassiopeia. I love that it's out on its own, surrounded by cold dark space and a field of stars. NGC 281 also has an impressive set of Bok Globules, those dark gaseous knots drifting in front of the bright blue and gold (oxygen and hydrogen). And that's Achird (eta Cassiopeia) at the bottom left, a variable double star a little under 20 lightyears away. Damn, that's nearly close enough to visit--with the right technology.

Notes: William Optics GT81 at f/4.7 with WO 0.8x Flat6A II, Astronomik Ha, OIII, and SII filters, Moonlite focuser, ZWO ASI120MM OAG, Imaging camera: ZWO ASI1600MM Pro cooled mono on an iOptron CEM25P mount. Stacked in DSS, processed in PS CC 2019.



Chris Howard
License: None (All rights reserved)

Sky plot

Sky plot


NGC 281 Pacman Nebula in Cassiopeia, 


            Chris Howard