NGC 3817
| Galaxy NGC 3817 |
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|---|---|
![NGC 3817 with LEDA 213873 (l), SDSS J114151.16 + 101843.6 (ro), LEDA 213872 (r), LEDA 1377160 (u) & LEDA 4001239 (lu) [1]](https://de.wikipedia.org/wiki/Datei:NGC3817_-_SDSS_DR14.jpg)
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| NGC 3817 with LEDA 213873 (l), SDSS J114151.16 + 101843.6 (ro), LEDA 213872 (r), LEDA 1377160 (u) & LEDA 4001239 (lu) | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 11 h 41 m 53.1 s |
| declination | + 10 ° 18 ′ 14 ″ |
| Appearance | |
| Morphological type | SB0 / a |
| Brightness (visual) | 13.3 mag |
| Brightness (B-band) | 14.3 mag |
| Angular expansion | 1.0 '× 0.9' |
| Position angle | 140 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 350 HCG 58 |
| Redshift | 0.020007 |
| Radial velocity | 5998 km / s |
|
Stroke distance v rad / H 0 |
(264 ± 19) · 10 6 ly (81.0 ± 5.7) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | January 18, 1828 |
| Catalog names | |
| NGC 3817 • UGC 6657 • PGC 36299 • CGCG 068-028 • MCG + 02-30-012 • HCG 58C • GALEX 6379078614640496266 • SDSS J114152.94 + 101815.7 | |
NGC 3817 is a lenticular galaxy of the Hubble type SB0 / a with an active galaxy core in the constellation Virgo on the ecliptic . It is estimated to be 276 million light years from the Milky Way and about 110,000 light years in diameter. Together with PGC 213872 and PGC 213873 it forms a galaxy trio .
In the same area of the sky are u. a. the galaxies NGC 3819 , NGC 3820 , NGC 3822 , NGC 3825 .
The object was discovered on January 18, 1828 by John Herschel .