NGC 3630
| Galaxy NGC 3630 / NGC 3645 |
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|---|---|
![NGC 3630 with LEDA 213813 (lu) [1]](https://de.wikipedia.org/wiki/Datei:NGC3630_-_SDSS_DR14.jpg)
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| NGC 3630 with LEDA 213813 (lu) | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 11 h 20 m 16.980 s |
| declination | + 02 ° 57 ′ 51.79 ″ |
| Appearance | |
| Morphological type | S0 |
| Brightness (visual) | 12.0 mag |
| Brightness (B-band) | 12.9 mag |
| Angular expansion | 2.0 'x 0.8' |
| Position angle | 37 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 324 Leo II group NGC 3640 group LGG 233 |
| Redshift | 0.005000 ± 0.000017 |
| Radial velocity | 1499 ± 5 km / s |
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Stroke distance v rad / H 0 |
(62 ± 4) · 10 6 ly (18.9 ± 1.3) Mpc |
| history | |
| discovery | Wilhelm Herschel John Herschel |
| Discovery date | February 23, 1784 April 7, 1828 |
| Catalog names | |
| NGC 3630 • NGC 3645 • UGC 6349 • PGC 34698 • LEDA 1032047 • CGCG 039-124 • MCG + 01-29-031 • 2MASX J11201698 + 0257510 • GC 2388/2381 • H II 32 • h 867/861 • GALEX ASC J112016 .99 + 025752.6 • LDCE 798 NED002 | |
NGC 3630 = NGC 3645 is a lenticular galaxy of the Hubble type S0 / a in the constellation Leo on the ecliptic . It is estimated to be 62 million light years from the Milky Way and about 40,000 light years in diameter. Together with six other galaxies, it is considered a member of the NGC 3640 group ( LGG 233 ).
In the same area of the sky are u. a. the galaxies NGC 3641 , NGC 3643 , NGC 3644 , NGC 3647 .
The object was discovered on April 7, 1828 by John Herschel .