NGC 3172
| Galaxy NGC 3172 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Little Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 47 m 14.0 s |
| declination | + 89 ° 05 ′ 35 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 14.4 mag |
| Brightness (B-band) | 15.3 mag |
| Angular expansion | 1.00 × 0.7 |
| Position angle | 39 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.020334 +/- 0.000097 |
| Radial velocity | 6096 +/- 29 km / s |
|
Stroke distance v rad / H 0 |
(280 ± 20) x 10 6 ly (85.8 ± 6.0) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | October 4, 1831 |
| Catalog names | |
| NGC 3172 • PGC 36847 • CGCG 370-002 / 370-018 • MCG + 15-01-011 • 2MASX J11471192 + 8905357 • LDCE 0717 NED002 | |
NGC 3172 (Polarissima borealis) is a Galaxy from the Hubble type S in the constellation Small bear. It is an estimated 280 million light years from the Milky Way .
The object was discovered by John Herschel on October 4, 1831 .