NGC 4023
| Galaxy NGC 4023 |
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|---|---|
![NGC 4023 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC4023_-_SDSS_DR14.jpg)
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| NGC 4023 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 59 m 05.471 s |
| declination | + 24 ° 59 ′ 20.27 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 0.90 ′ × 0.7 ′ |
| Position angle | 25 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 368 |
| Redshift | 0.014704 ± 0.000030 |
| Radial velocity | 4408 ± 9 km / s |
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Stroke distance v rad / H 0 |
(196 ± 14) · 10 6 ly (60.0 ± 4.2) Mpc |
| history | |
| discovery | Johan Dreyer |
| Discovery date | April 26, 1878 |
| Catalog names | |
| NGC 4023 • UGC 6977 • PGC 37732 • CGCG 127-127 • MCG + 04-28-113 • 2MASX J11590546 + 2459206 • GALEX ASC J115905.45 + 245920.1 • NSA 119553 • WISEA J115905.47 + 245920.3 | |
NGC 4023 is a spiral galaxy of Hubble type Sb in the constellation Coma Berenices the northern sky . It is estimated to be 196 million light years from the Milky Way and about 50,000 light years in diameter.
In the same area of the sky are u. a. the galaxies NGC 3999 , NGC 4005 , NGC 4011 , NGC 4022 .
The object was discovered by Johan Dreyer on April 26, 1878 .