NGC 2641
| Galaxy NGC 2641 |
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|---|---|
![NGC 2641 with LEDA 213526 (r) [1]](https://de.wikipedia.org/wiki/Datei:NGC_2641_DSS.jpg)
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| NGC 2641 with LEDA 213526 (r) | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 08 h 47 m 57.5 s |
| declination | + 72 ° 53 ′ 45 ″ |
| Appearance | |
| Morphological type | S0: |
| Brightness (visual) | 14.0 mag |
| Brightness (B-band) | 15.0 mag |
| Angular expansion | 1.3 '× 1.1' |
| Position angle | 5 ° |
| Surface brightness | 14.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.010417 ± 0.000093 |
| Radial velocity | 3123 ± 28 km / s |
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Stroke distance v rad / H 0 |
(145 ± 10) · 10 6 ly (44.4 ± 3.1) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | September 30, 1802 |
| Catalog names | |
| NGC 2641 • UGC 4577 • PGC 24722 • CGCG 331-065 • 332-012 • MCG + 12-09-012 • 2MASX J08475760 + 7253446 • GC 1682 • H III 983 • 2MASS J08475749 + 7253446 • LDCE 573 NED017 | |
NGC 2641 is a lenticular galaxy of the Hubble-type S0 in the constellation Great Bear in the northern sky . It is an estimated 145 million light years away from the Milky Way and about 55,000 light years in diameter .
In the same area of the sky are u. a. the galaxies NGC 2629 , NGC 2636 , NGC 2646 , IC 2389 .
The object was discovered on September 30, 1802 by the astronomer Wilhelm Herschel with a 48 cm telescope.