NGC 6916
| Galaxy NGC 6916 |
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|---|---|
|
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| AladinLite | |
| Constellation | swan |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 20 h 23 m 33.1 s |
| declination | + 58 ° 20 ′ 39 ″ |
| Appearance | |
| Morphological type | SBbc |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 14.9 mag |
| Angular expansion | 1.8 'x 1.2' |
| Position angle | 90 ° |
| Surface brightness | 14.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.010344 ± 0.000023 |
| Radial velocity | 3101 ± 7 km / s |
|
Stroke distance v rad / H 0 |
(149 ± 10) · 10 6 ly (45.6 ± 3.2) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | June 26, 1887 |
| Catalog names | |
| NGC 6916 • UGC 11554 • PGC 64600 • CGCG 304-004 • MCG + 10-29-004 • IRAS 20224 + 5810 • 2MASX J20233306 + 5820385 • GALEX ASC J202333.14 + 582041.5 | |
NGC 6916 is a barred spiral galaxy of the Hubble type SBbc in the constellation Swan in the northern sky . It is estimated to be 149 million light years from the Milky Way and about 75,000 light years in diameter .
The Type Ia supernova SN 2002cd was observed here.
The object was discovered by Lewis Swift on June 26, 1887 .