NGC 2989
| Galaxy NGC 2989 |
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|---|---|
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| Near infrared image from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Water snake |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 09 h 45 m 25.2 s |
| declination | -18 ° 22 ′ 26 ″ |
| Appearance | |
| Morphological type | SAB (s) bc: / HII / Sbrst |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 1.7 ′ × 0.9 ′ |
| Position angle | 38 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 181 |
| Redshift | 0.013830 ± 0.000017 |
| Radial velocity | 4146 ± 5 km / s |
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Stroke distance v rad / H 0 |
(176 ± 12) · 10 6 ly (54.1 ± 3.8) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | February 12, 1836 |
| Catalog names | |
| NGC 2989 • PGC 27962 • ESO 566-9 • MCG -03-25-20 • IRAS 09430-1808 • 2MASX J09452522-1822259 • SGC 094304-1808.7 • GC 1915 • h 3186 • LDCE 0689 NED001 | |
NGC 2989 is a bar-spiral galaxy of the Hubble type SAB (s) bc: in the constellation of Water Snake , which is listed in the New General Catalog . It is an estimated 176 million light years from the Milky Way and is classified as a starburst galaxy .
The object was discovered on February 12, 1836 by the astronomer John Herschel with a 48 cm telescope.
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NGC 2989 group ( LGG 181 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 2989 | PGC 27962 | 176 |
| PGC 27757 | MCG -03-25-015 | 178 |
| PGC 27994 | MCG -03-25-021 | 171 |