NGC 4245
| Galaxy NGC 4245 |
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|---|---|
![NGC 4245 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC4245_-_SDSS_DR14.jpg)
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| NGC 4245 SDSS image | |
| AladinLite | |
| Constellation | Berenike's hair |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 17 m 36.773 s |
| declination | + 29 ° 36 ′ 28.83 ″ |
| Appearance | |
| Morphological type | SB (r) 0 / a: / HII |
| Brightness (visual) | 11.4 mag |
| Brightness (B-band) | 12.3 mag |
| Angular expansion | 2.9 'x 2.2' |
| Position angle | 165 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation |
Coma I group NGC 4062 group LGG 279 |
| Redshift | 0.002948 ± 0.000071 |
| Radial velocity | 884 ± 21 km / s |
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Stroke distance v rad / H 0 |
(39 ± 3) x 10 6 ly (12.1 ± 0.9) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 13, 1785 |
| Catalog names | |
| NGC 4245 • UGC 7328 • PGC 39437 • CGCG 158-059 • MCG + 05-29-049 • IRAS 12151 + 2952 • 2MASX J12173678 + 2936288 • GC 2832 • H I 74 • h 1168 • GALEX ASC J121736.72 + 293628.4 • WISEA J121736.78 + 293628.7 • LDCE 867 NED096 | |
NGC 4245 is a lenticular galaxy of the Hubble type SB0 / a with extensive star formation areas in the constellation Coma Berenices in the northern sky . It is an estimated 39 million light-years from the Milky Way and about 35,000 light-years across. Together with 18 other galaxies, it forms the NGC 4274 group ( LGG 279 ).
In the same area of the sky are u. a. the galaxies NGC 4253 , NGC 4274 , NGC 4278 , IC 779 .
The object was discovered on March 13, 1785 by the astronomer William Herschel with the help of his 18.7 inch telescope.
Web links
Commons : NGC 4245 - collection of images, videos, and audio files
