NGC 5550
| Galaxy NGC 5550 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Bear keeper |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 14 h 18 m 28.0 s |
| declination | + 12 ° 52 ′ 59 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 13.3 mag |
| Brightness (B-band) | 14.1 mag |
| Angular expansion | 1.2 ′ × 0.8 ′ |
| Position angle | 100 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.024774 +/- 0.000163 |
| Radial velocity | (7427 +/- 49) km / s |
|
Stroke distance v rad / H 0 |
(332 ± 23) x 10 6 ly (101.9 ± 7.2) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | April 4, 1831 |
| Catalog names | |
| NGC 5550 • UGC 9154 • PGC 51108 • MCG + 02-36-065 • GC 3840 • h 1774 • SDSS J141827.97 + 125259.0 | |
NGC 5550 is a spiral galaxy of Hubble type Sb? in the constellation Bear Guardian in the northern sky . It is around 332 million light years away from the Milky Way and has a diameter of around 115,000 light years .
The object was discovered on April 4, 1831 by John Herschel .