NGC 6616
| Galaxy NGC 6616 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 18 h 17 m 41.1 s |
| declination | + 22 ° 14 ′ 18 ″ |
| Appearance | |
| Morphological type | Sab |
| Brightness (visual) | 14.2 mag |
| Brightness (B-band) | 15 likes |
| Angular expansion | 1.4 ′ × 0.6 ′ |
| Position angle | 59 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.018533 ± 0.000130 |
| Radial velocity | 5556 ± 39 km / s |
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Stroke distance v rad / H 0 |
(256 ± 18) · 10 6 ly (78.5 ± 5.5) Mpc |
| history | |
| discovery | Lewis A. Swift |
| Discovery date | July 14, 1885 |
| Catalog names | |
| NGC 6616 • UGC 11192 • PGC 61693 • CGCG 142-036 • MCG + 04-43-022 • 2MASX J18174109 + 2214185 • NVSS J181741 + 221419 • LDCE 1291 NED012 | |
NGC 6616 is a spiral galaxy of Hubble type Sab in the constellation Hercules at the northern sky . It is estimated to be 256 million light years from the Milky Way and about 105,000 light years in diameter.
The Type Ia supernova SN 2002dk was observed here.
The object was discovered by Lewis A. Swift on July 14, 1885 .