NGC 6197
| Galaxy NGC 6197 / IC 4616 |
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![NGC 6197 with SDSS J163806.01 + 360123.0 (lo) [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC6197_-_SDSS_DR14.jpg)
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| NGC 6197 with SDSS J163806.01 + 360123.0 (lo) SDSS image | |
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 16 h 37 m 59.880 s |
| declination | + 35 ° 59 ′ 43.79 ″ |
| Appearance | |
| Morphological type | SB0-a / LINER |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.5 mag |
| Angular expansion | 1.3 ′ × 0.5 ′ |
| Position angle | 37 ° |
| Surface brightness | 14.0 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 621 |
| Redshift | 0.032936 ± 0.000110 |
| Radial velocity | 9874 ± 33 km / s |
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Stroke distance v rad / H 0 |
(448 ± 31) · 10 6 ly (137.4 ± 9.6) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | July 9, 1864 |
| Catalog names | |
| NGC 6197 • IC 4616 • PGC 58655 • CGCG 196-089 • MCG + 06-36-59 • 2MASX J16375990 + 3559438 • GC 5824 • GALEX ASC J163800.02 + 355943.9 • LDCE 1199 NED004 | |
NGC 6197 = IC 4616 is a lens-shaped galaxy with an active nucleus of the Hubble type SB0 / a in the constellation Hercules in the northern sky . It is estimated to be 448 million light years from the Milky Way and about 170,000 light years in diameter.
In the same area of the sky are u. a. the galaxies NGC 6194 , NGC 6196 , IC 4614 .
The object was discovered by Albert Marth on July 9, 1864 . Due to an error in Marth's position, the observation of Guillaume Bigourdan on August 28, 1886 under IC 4616 led to an entry in the index catalog .
Web links
- NGC 6197th SIMBAD , accessed on 14 June 2019 (English).
- NGC 6197. DSO Browser, accessed June 14, 2016 .
- Auke Slotegraaf : NGC 6197. Deep Sky Observer's Companion, accessed June 14, 2016 (English).