NGC 7013
| Galaxy NGC 7013 |
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|---|---|
![NGC 7013 [1] Hubble Space Telescope](https://de.wikipedia.org/wiki/Datei:NGC_7013_hst_06359_606.png)
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| NGC 7013 Hubble Space Telescope | |
| AladinLite | |
| Constellation | swan |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 21 h 03 m 33.577 s |
| declination | + 29 ° 53 ′ 50.90 ″ |
| Appearance | |
| Morphological type | SA (r) 0 / a / LINER |
| Brightness (visual) | 11.5 likes |
| Brightness (B-band) | 12.4 mag |
| Angular expansion | 4.0 '× 1.4' |
| Position angle | 157 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation | isolated NGC 7013 group |
| Redshift | 0.002598 ± 0.000005 |
| Radial velocity | 779 ± 1 km / s |
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Stroke distance v rad / H 0 |
(45 ± 3) x 10 6 ly (13.7 ± 1.0) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | July 17, 1784 |
| Catalog names | |
| NGC 7013 • UGC 11670 • PGC 66003 • CGCG 491-002 • MCG + 05-49-001 • IRAS 21014 + 2941 • 2MASX J21033361 + 2953504 • GC 4632 • H II 203 • h 2102 • 2MASS J21033358 + 2953510 • NVSS J210333 + 295352 • 2MIG 2864 | |
NGC 7013 is a lens-shaped galaxy with an active nucleus of the Hubble type S0 / a in the constellation Swan in the northern sky . It is estimated to be 45 million light years away from the Milky Way and about 45,000 light years in diameter.
The object was discovered on July 17, 1784 by the astronomer William Herschel with his 18.7-inch reflector telescope and was later included in his New General Catalog by Johan Dreyer .
Web links
Commons : NGC 7013 - collection of images, videos, and audio files
