NGC 549
| Galaxy NGC 549 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | sculptor |
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Position equinox : J2000.0 , 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 .