NGC 1691
| Galaxy NGC 1691 |
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|---|---|
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| AladinLite | |
| Constellation | Orion |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 04 h 54 m 38.3 s |
| declination | + 03 ° 16 ′ 05 ″ |
| Appearance | |
| Morphological type | (R) SB (s) 0 / a: Sbrst |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 2.3 ′ × 1.8 ′ |
| Position angle | 37 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 120 |
| Redshift | 0.015281 +/- 0.000033 |
| Radial velocity | (4581 +/- 10) km / s |
|
Stroke distance v rad / H 0 |
(202 ± 14) · 10 6 ly (61.8 ± 4.3) Mpc |
| history | |
| discovery | Edouard Stephan |
| Discovery date | December 15, 1876 |
| Catalog names | |
| NGC 1691 • UGC 3201 • PGC 16300 • CGCG 420-019 • MCG + 01-13-009 • IRAS 04520 + 0311 • 2MASX J04543832 + 0316045 • Mrk 1088 • LDCE 0358 NED002 | |
NGC 1691 is a lenticular galaxy of the Hubble type SB0-a in the constellation Orion. It is estimated to be 202 million light years from the Milky Way .
The object was discovered by Edouard Stephan on December 15, 1876 .