NGC 4007
| Galaxy NGC 4007 / NGC 4005 |
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|---|---|
![NGC 4005 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC4005_-_SDSS_DR14.jpg)
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| NGC 4005 SDSS image | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 11 h 58 m 10.166 s |
| declination | + 25 ° 07 ′ 20.12 ″ |
| Appearance | |
| Morphological type | Sb / LINER |
| Brightness (visual) | 13.0 likes |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 1.20 ′ × 0.7 ′ |
| Position angle | 92 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 368 NGC 3987 group LGG 261 |
| Redshift | 0.014906 ± 0.000017 |
| Radial velocity | 4469 ± 5 km / s |
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Stroke distance v rad / H 0 |
(199 ± 14) · 10 6 ly (60.9 ± 4.3) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 6, 1785 |
| Catalog names | |
| NGC 4005/4007 • UGC 6952 • PGC 37661 • CGCG 127-120 • MCG + 04-28-107 • 2MASX J11581014 + 2507199 • GC 2648 • H III 325 • LDCE 854 NED005 • NVSS J115810 + 250719 • WISEA J115810.21 + 250719.4 | |
NGC 4007 = NGC 4005 is a spiral galaxy of the Hubble type Sb with an active galaxy core in the constellation Leo on the ecliptic . It is estimated to be 199 million light years from the Milky Way and about 70,000 light years in diameter. Presumably it forms a gravitationally bound galaxy pair together with NGC 4000 and is considered a member of the NGC 3987 group ( LGG 261 ).
In the same area of the sky are u. a. the galaxies NGC 3997 , NGC 3999 , NGC 4011 , NGC 4015 .
The object was discovered by Wilhelm Herschel on April 6, 1785 and recorded in the NGC catalog as NGC 4007 . The astronomer Otto Struve also observed the galaxy in 1869, but without recognizing its identity, which is why it is listed again in the NGC catalog as NGC 4005 .