NGC 6591
| Galaxy NGC 6591 |
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|---|---|
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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 14 m 03.9 s |
| declination | + 21 ° 03 ′ 50 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 15.5 mag |
| Brightness (B-band) | 16.3 mag |
| Angular expansion | 0.3 ′ × 0.1 ′ |
| Position angle | 95 ° |
| Surface brightness | 11.5 mag / arcmin² |
| Physical data | |
| Redshift | ? |
| Radial velocity | ? km / s |
| distance | ? pc |
| history | |
| discovery | Albert Marth |
| Discovery date | July 27, 1864 |
| Catalog names | |
| NGC 6591 • PGC 61610 • 2MASX J18140377 + 2103505 • LEDA 61610 • GC 5905 • 2MASS J18140370 + 2103504 | |
NGC 6591 is a 15.5 mag bright spiral galaxy of the Hubble type S? in the constellation Hercules in the northern sky . In the same area of the sky are u. a. the galaxies NGC 6577 , NGC 6579 , NGC 6580 , NGC 6586 .
The object was discovered by Albert Marth on July 27, 1864 .
Due to the observation errors known from Marth, some modern catalogs refer under this number to another object at the position right ascension: 18: 13: 57.4; Declination: +21: 02: 04.
Web links
- NGC 6591. SIMBAD, accessed October 19, 2016 .
- NGC 6591. DSO Browser, accessed October 19, 2016 .
- Auke Slotegraaf: NGC 6591. Deep Sky Observer's Companion, accessed on October 19, 2016 .