NGC 3643
| Galaxy NGC 3643 |
|
|---|---|
![NGC 3643 [1]](https://de.wikipedia.org/wiki/Datei:NGC3643_-_SDSS_DR14.jpg)
|
|
| NGC 3643 | |
| AladinLite | |
| Constellation | lion |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 21 m 24.990 s |
| declination | + 03 ° 00 ′ 50.14 ″ |
| Appearance | |
| Morphological type | SB (r) 0+: / sp |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 15.0 mag |
| Angular expansion | 1.2 '× 0.8' |
| Position angle | 99 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 324 |
| Redshift | 0.005838 ± 0.000152 |
| Radial velocity | 1750 ± 46 km / s |
|
Stroke distance v rad / H 0 |
(73 ± 6) · 10 6 ly (22.4 ± 1.7) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | March 22, 1865 |
| Catalog names | |
| NGC 3643 • PGC 34802 • CGCG 039-136 • MCG + 01-29-036 • 2MASX J11212495 + 0300501 • 2MASS J11212499 + 0300502 • GALEX ASC J112124.93 + 030051.2 • LDCE 798 NED005 | |
NGC 3643 is a lenticular galaxy of the Hubble type SB0 / a in the constellation Leo on the ecliptic . It is estimated to be 73 million light years from the Milky Way and about 25,000 light years in diameter.
In the same area of the sky are u. a. the galaxies NGC 3640 , NGC 3644 , NGC 3641 , NGC 3647 .
The object was discovered by Albert Marth on March 22, 1865 .