NGC 4018
| Galaxy NGC 4018 |
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|---|---|
![NGC 4018 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC4018_-_SDSS_DR14.jpg)
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| NGC 4018 SDSS image | |
| AladinLite | |
| Constellation | Berenike's hair |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 11 h 58 m 40.70 s |
| declination | + 25 ° 18 ′ 59.1 ″ |
| Appearance | |
| Morphological type | Sab |
| Brightness (visual) | 13.2 mag |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 1.70 ′ × 0.3 ′ |
| Position angle | 163 ° |
| Surface brightness | 12.3 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 3987 group LGG 261 |
| Redshift | 0.014947 +/- 0.000020 |
| Radial velocity | 4481 +/- 6 km / s |
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Stroke distance v rad / H 0 |
(199 ± 14) · 10 6 ly (61.0 ± 4.3) Mpc |
| history | |
| discovery | Johan Dreyer |
| Discovery date | April 26, 1878 |
| Catalog names | |
| NGC 4018 • UGC 6966 • PGC 37699 • CGCG 127-123 • MCG + 04-28-108 • IRAS 11561 + 2535 • 2MASX J11584070 + 2518591 • LDCE 854 NED006 • NVSS J115840 + 251902 • WISEA J115840.64 + 251900.4 | |
NGC 4018 is a spiral radio galaxy of the Hubble type Sab in the constellation Coma Berenices in the northern sky . It is estimated to be 199 million light-years from the Milky Way and about 100,000 light-years across. Together with four other galaxies, it is considered a member of the NGC 3987 group ( LGG 261 ).
In the same area of the sky are u. a. the galaxies NGC 4000 , NGC 4005 , NGC 4011 , NGC 4022 .
The object was discovered by Johan Dreyer on April 26, 1878 .