NGC 6577
| Galaxy NGC 6577 |
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|---|---|
|
|
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 18 h 12 m 01.233 s |
| declination | + 21 ° 27 ′ 48.16 ″ |
| Appearance | |
| Morphological type | E. |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.5 ′ × 1.3 ′ |
| Position angle | 6 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 652 |
| Redshift | 0.017339 ± 0.000070 |
| Radial velocity | 5198 ± 21 km / s |
|
Stroke distance v rad / H 0 |
(240 ± 17) · 10 6 ly (73.6 ± 5.2) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | August 7, 1864 |
| Catalog names | |
| NGC 6577 • UGC 11148 • PGC 61543 • CGCG 142-017 • MCG + 04-43-009 • 2MASX J18120123 + 2127486 • GC 5899 • WISEA J181201.23 + 212748.4 • LDCE 1291 NED005 • NVSS J181201 + 212747 | |
NGC 6577 is a 12.7 likes bright elliptical galaxy from the Hubble type E1 in the constellation Hercules at the northern sky . It is an estimated 235 million light years away from the Milky Way and about 40,000 light years in diameter. Presumably it forms a gravitationally bound galaxy pair together with NGC 6576 .
In the same area of the sky are u. a. the galaxies NGC 6571 , NGC 6579 , NGC 6580 , NGC 6586 .
The object was discovered by Albert Marth on August 7, 1864 .
Web links
- NGC 6577. SIMBAD , accessed September 19, 2019 .
- NGC 6577. DSO Browser, accessed September 19, 2016 .
- Auke Slotegraaf : NGC 6577. Deep Sky Observer's Companion, accessed on September 19, 2016 (English).
- Aladin Lite: NGC 6577