NGC 6587
| Galaxy NGC 6587 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 18 h 13 m 50.9 s |
| declination | + 18 ° 49 ′ 31 ″ |
| Appearance | |
| Morphological type | E / SB0 |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 1.3 ′ × 1.1 ′ |
| Position angle | 21 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.010340 +/- 0.000073 |
| Radial velocity | 3100 +/- 22 km / s |
|
Stroke distance v rad / H 0 |
(146 ± 10) · 10 6 ly (44.8 ± 3.1) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | July 31, 1864 |
| Catalog names | |
| NGC 6587 • UGC 11166 • PGC 61607 • CGCG 113-031 • MCG + 03-46-020 • 2MASX J18135090 + 1849312 • GC 5904 • GALEX ASC J181350.90 + 184931.0 | |
NGC 6587 is a 12.6 mag bright elliptical galaxy of the Hubble type "E / SB0" in the constellation Hercules in the northern sky . It is estimated to be 146 million light years from the Milky Way and about 55,000 light years in diameter.
The object was discovered by Albert Marth on July 31, 1864 .
Web links
- NGC 6587. SIMBAD, accessed October 19, 2016 .
- NGC 6587. DSO Browser, accessed October 19, 2016 .
- Auke Slotegraaf: NGC 6587. Deep Sky Observer's Companion, accessed on October 19, 2016 (English).