NGC 5664
| Galaxy NGC 5664 / IC 4455 |
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|---|---|
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| AladinLite | |
| Constellation | Libra |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 33 m 43.6 s |
| declination | -14 ° 37 ′ 11 ″ |
| Appearance | |
| Morphological type | Sa / Sy2 |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 15.0 mag |
| Angular expansion | 0.8 ′ × 0.3 ′ |
| Position angle | 30 ° |
| Surface brightness | 12.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.015157 ± 0.000023 |
| Radial velocity | 4544 ± 7 km / s |
|
Stroke distance v rad / H 0 |
(201 ± 14) · 10 6 ly (61.5 ± 4.3) Mpc |
| history | |
| discovery | Francis Leavenworth |
| Discovery date | June 6, 1885 |
| Catalog names | |
| NGC 5664 • IC 4455 • PGC 52033 • MCG -02-37-08 • IRAS 14309-1424 • 2MASX J14334360-1437109 • | |
NGC 5664 = IC 4455 is a 14.1 mag bright spiral Seyfert galaxy (type 2) of the Hubble type Sa in the constellation Libra on the ecliptic . It is estimated to be 201 million light years from the Milky Way and about 50,000 light years in diameter
The object was discovered by Francis Leavenworth on June 6, 1885 . The observation of DeLisle Stewart in July 1899 led to an entry in the index catalog under IC 4455 .
Web links
- NGC 5664. SIMBAD, accessed March 29, 2016 .
- NGC 5664. DSO Browser, accessed March 29, 2016 .
- Auke Slotegraaf: NGC 5664. Deep Sky Observer's Companion, accessed on March 29, 2016 (English).