Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  NGC 281
Pacman Nebula (NGC 281) in LRGB + Ha + O3, 



    
        

            Scott Davis
Pacman Nebula (NGC 281) in LRGB + Ha + O3
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Pacman Nebula (NGC 281) in LRGB + Ha + O3

Acquisition details

Dates:
July 25, 2016 ·  July 28, 2016 ·  July 29, 2016 ·  July 31, 2016 ·  Aug. 1, 2016 ·  Aug. 2, 2016 ·  Aug. 3, 2016 ·  Aug. 4, 2016
Frames:
Astrodon 31mm B Tru-Balance E-Series Gen 2: 20×180(1h) -20°C bin 2×2
Astrodon 31mm G Tru-Balance E-Series Gen 2: 20×180(1h) -20°C bin 2×2
Astrodon 31mm Ha 3nm FWHM: 17×1200(5h 40′) -20°C bin 1×1
Astrodon 31mm L Tru-Balance E-Series Gen 2: 65×180(3h 15′) -20°C bin 1×1
Astrodon 31mm OIII 3nm FWHM: 23×1200(7h 40′) -20°C bin 1×1
Astrodon 31mm R Tru-Balance E-Series Gen 2: 20×180(1h) -20°C bin 2×2
Integration:
19h 35′
Darks:
30
Flats:
30
Flat darks:
30
Bias:
30
Avg. Moon age:
19.48 days
Avg. Moon phase:
16.75%
Bortle Dark-Sky Scale:
7.00

Basic astrometry details

Astrometry.net job: 1184345

RA center: 00h52m30s.5

DEC center: +56°3925

Pixel scale: 3.119 arcsec/pixel

Orientation: 88.989 degrees

Field radius: 0.598 degrees

Resolution: 620x591

File size: 212.5 KB

Locations: My Backyard, Clovis, California, United States

Description

The Pacman Nebula is an area of ionized gas in the constellation Cassiopeia. Catalogued as NGC 281, it sits approximately 9,500 light year from Earth. While very difficult to glimpse visually telescope, this nebula is rather beautiful and interesting when photographed.

The red area of the nebula shows Hydrogen gas; blue shows Oxygen.

Comments

Sky plot

Sky plot

Histogram

Pacman Nebula (NGC 281) in LRGB + Ha + O3, 



    
        

            Scott Davis