NGC 3691
| Galaxy NGC 3691 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 28 m 09.4 s |
| declination | + 16 ° 55 ′ 14 ″ |
| Appearance | |
| Morphological type | SBb? |
| Brightness (visual) | 12.4 mag |
| Brightness (B-band) | 13.3 mag |
| Angular expansion | 1.4 ′ × 1 ′ |
| Position angle | 15 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 237 |
| Redshift | 0.003619 ± 0.000013 |
| Radial velocity | (1085 ± 4) km / s |
|
Stroke distance v rad / H 0 |
(45 ± 3) x 10 6 ly (13.9 ± 1.0) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 14, 1784 |
| Catalog names | |
| NGC 3691 • UGC 6464 • PGC 35292 • CGCG 096-050 • MCG + 03-29-053 • IRAS 11255 + 1711 • 2MASX J11280941 + 1655136 • GC 2427 • H II 54 • h 898 • GALEX ASC J112809.29 + 165513.9 • LDCE 778 NED042 | |
NGC 3691 is a faint , spiral-shaped dwarf galaxy of the Hubble type SB / P in the constellation Leo on the ecliptic . It is estimated to be 45 million light years away from the Milky Way and has a diameter of around 20,000 ly.
In the same area of the sky there are u. a. the galaxies NGC 3681 , NGC 3684 , NGC 3686 .
The object was discovered by Wilhelm Herschel on March 14, 1784 .