NGC 6321
| Galaxy NGC 6321 |
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|---|---|
![NGC 6321 with LEDA 214594 (lo) [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC6321_-_SDSS_DR14.jpg)
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| NGC 6321 with LEDA 214594 (lo) SDSS image | |
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 17 h 14 m 24.22 s |
| declination | + 20 ° 18 ′ 50.1 ″ |
| Appearance | |
| Morphological type | SB (rs) bc |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.4 mag |
| Angular expansion | 1.1 ′ × 1.0 ′ |
| Position angle | 63 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | isolated |
| Redshift | 0.020764 ± 0.000023 |
| Radial velocity | 6225 ± 7 km / s |
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Stroke distance v rad / H 0 |
(284 ± 20) x 10 6 ly (87.2 ± 6.1) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | July 14, 1871 |
| Catalog names | |
| NGC 6321 • UGC 10768 • PGC 59900 • CGCG 111-015 • MCG + 03-44-002 • IRAS 17122 + 2022 • 2MASX J17142422 + 2018498 • GC 5853 • GALEX ASC J171424.21 + 201850.2 • NVSS J171424 + 201849 • 2MIG 2359 | |
NGC 6321 is a 13.8 mag bright bar-spiral galaxy of the Hubble-type SBbc in the constellation Hercules in the northern sky . It is an estimated 284 million light years from the Milky Way and about 90,000 light years in diameter.
The object was discovered on July 14, 1871 by Édouard Jean-Marie Stephan .
Web links
- NGC 6321. SIMBAD , accessed July 20, 2016 .
- NGC 6321. DSO Browser, accessed July 20, 2016 .
- Auke Slotegraaf : NGC 6321. Deep Sky Observer's Companion, accessed July 20, 2016 (English).