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Contains:  NGC 281
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NGC 281 Pacman nebula SHO, 





    
        

            Algorab
NGC 281 Pacman nebula SHO

NGC 281 Pacman nebula SHO

Technical card

Resolution: 3450x4579

Dates:Oct. 14, 2018Oct. 15, 2018

Frames:
Baader 36mm Ha 7nm: 23x600" -17C bin 1x1
Baader 36mm OIII 7nm: 9x600" -17C
Baader 36mm SII 7nm: 13x600" -17C bin 1x1

Integration: 7.5 hours

Avg. Moon age: 5.80 days

Avg. Moon phase: 33.59%

Astrometry.net job: 2315801

RA center: 13.210 degrees

DEC center: 56.664 degrees

Pixel scale: 0.656 arcsec/pixel

Orientation: 2.842 degrees

Field radius: 0.522 degrees

Locations: Säule, Siegen, NRW, Germany

Data source: Backyard

Description

As usual, I wasn't satisfied with the DSLR image of last year. So I put the 12" Newtonian at the pacman again and was rewarded with very good seeing conditions.
NGC 281 is a bright emmission nebula in the Milky way's Perseus Spiral arm at 9200ly from us. In its center, the open cluster IC1590 leads to the ionization of the nebula. Therefore several Bok globules can be seen in front of the emmission part of the nebula where star formation take place. The nebula was discovered by E.E. Barnard in 1883. He described "a large faint nebula, very diffuse".

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Author

Algorab
Algorab
License: None (All rights reserved)
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NGC 281 Pacman nebula SHO, 





    
        

            Algorab