NGC 4001
| Galaxy NGC 4001 |
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|---|---|
![NGC 4001 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC4001_-_SDSS_DR14.jpg)
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| NGC 4001 SDSS image | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 11 h 58 m 06.784 s |
| declination | + 47 ° 20 ′ 05.47 ″ |
| Appearance | |
| Morphological type | dE4 |
| Brightness (visual) | 15.3 mag |
| Brightness (B-band) | 15.9 mag |
| Angular expansion | 0.70 ′ × 0.3 ′ |
| Position angle | 162 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.047000 |
| Radial velocity | 14,090 km / s |
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Stroke distance v rad / H 0 |
(632 ± 44) · 10 6 ly (193.7 ± 13.6) Mpc |
| history | |
| discovery | Bindon Stoney |
| Discovery date | April 13, 1852 |
| Catalog names | |
| NGC 4001 • PGC 37656 • CGCG 243-033 • MCG + 08-22-047 • 2MASX J11580681 + 4720050 • GALEX ASC J115806.75 + 472005.3 • HOLM 314B • NSA 140514 • WISEA J115806.78 + 472005.4 | |
NGC 4001 is an elliptical galaxy of Hubble type E4 in the constellation Ursa Major at the northern sky . It is estimated to be 632 million light years from the Milky Way and about 130,000 light years in diameter. Together with NGC 4010 , it forms the optical galaxy pair Holm 314
The type II supernova SN 2003ky was observed here.
The object was discovered on April 13, 1852 by Bindon Blood Stoney , an assistant to William Parsons .