NGC 549

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Galaxy
NGC 549
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NGC 0549 DSS.jpg
AladinLite
Constellation sculptor
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 01 h 25 m 07.1 s
declination -38 ° 00 ′ 28 ″
Appearance
Morphological type (R ') SB (s) 0 / a:  
Brightness  (visual) 14.6 mag
Brightness  (B-band) 15.5 mag
Angular expansion 0.5 ′ × 0.4 ′
Surface brightness 12.7 mag / arcmin²
Physical data
Affiliation Abell 2911  
Redshift 0.020267 +/- 0.000170  
Radial velocity 6076 +/- 51 km / s  
Stroke distance
v rad  / H 0
(269 ± 19)  ·  10 6  ly
(82.4 ± 5.7)  Mpc 
history
discovery John Herschel
Discovery date November 29, 1837
Catalog names
NGC  549 • PGC  5243 • ESO  296-22 • 2MASX  J01250707-3800277 • GC  324 • h  2413 • GALEX ASC J012506.94-380027.5

NGC 549 is a spiral galaxy of Hubble type Sa in the constellation Sculptor at the southern sky . It is estimated to be 269 million light years away from the Milky Way and has a diameter of around 40,000 ly.
In the same area of ​​the sky are the galaxies NGC 534 , NGC 544 , NGC 546 , among others .

The object was discovered on November 29, 1837 by the British astronomer John Herschel .

Web links

Individual evidence

  1. a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e SEDS : NGC 549
  3. Seligman