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Hoag's Object, 





    
        

            Frank Zoltowski
Hoag's Object

Hoag's Object

Technical card

Resolution: 1780x1264

Frames:
Astrodon E Series Gen 2 B: 12x360" -25C bin 1x1
Astrodon E Series Gen 2 G: 12x360" -25C bin 1x1
Astrodon E Series Gen 2 L: 31x240" -25C bin 1x1
Astrodon E Series Gen 2 R: 12x360" -25C bin 1x1

Integration: 5.7 hours

Astrometry.net job: 1244002

RA center: 229.314 degrees

DEC center: 21.586 degrees

Pixel scale: 0.397 arcsec/pixel

Orientation: 0.633 degrees

Field radius: 0.120 degrees

Locations: Tebbutt Observatory, Edgewood, New Mexico, United States

Description

Hoag's Object, also known as PGC 54999 is a rare ring galaxy approximately 600 million light years away. The galaxy is named after Arthur Hoag who initially thought is was a planetary nebula or an “Einstein Ring” from a quasar. But later spectroscopic studies show that both the core and ring have the same redshift, hence the same distance. The core consists of older stars, while the 45 arc second diameter ring contains younger hot blue stars. The diameter is slightly larger than the Milky Way.

Comments

Author

fbzolt
Frank Zoltowski
License: Attribution-NonCommercial-ShareAlike Creative Commons
4114
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Hoag's Object, 





    
        

            Frank Zoltowski