NGC 539
| Galaxy NGC 539 |
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|---|---|
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| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 25 m 21.7 s |
| declination | -18 ° 09 ′ 50 ″ |
| Appearance | |
| Morphological type | SB (rs) c / HII |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.2 mag |
| Angular expansion | 1.6 ′ × 1.3 ′ |
| Position angle | 145 ° |
| Surface brightness | 14.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.032017 ± 0.000024 |
| Radial velocity | 9598 ± 7 km / s |
|
Stroke distance v rad / H 0 |
(429 ± 30) · 10 6 ly (131.5 ± 9.2) Mpc |
| history | |
| discovery | Francis Preserved Leavenworth |
| Discovery date | October 31, 1885 |
| Catalog names | |
| NGC 539 • NGC 563 • PGC 5269 • ESO 542-010 • MCG -03-04-063 • IRAS 01229-1825 • 2MASX J01252171-1809499 • SGC 012256-1825.4 • HIPASS J0125-18 • NPM1G -18.0062 | |
NGC 539 is a barred spiral galaxy with extensive star formation from Hubble type SBc in the constellation Cetus south of the ecliptic . It is estimated to be 429 million light years from the Milky Way and about 200,000 ly in diameter.
The type Ia supernova SN 2008gg observed.
The object it was discovered as a foggy object on October 31, 1885 by the American astronomer Francis Preserved Leavenworth .