NGC 5581
| Galaxy NGC 5581 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Bear keeper |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 21 m 16.3 s |
| declination | + 23 ° 28 ′ 48 ″ |
| Appearance | |
| Morphological type | E-S0 / LINER |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 15.1 mag |
| Angular expansion | 0.8 ′ × 0.7 ′ |
| Position angle | 162 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.015321 +/- 0.000100 |
| Radial velocity | 4593 +/- 30 km / s |
|
Stroke distance v rad / H 0 |
(207 ± 15) · 10 6 ly (63.6 ± 4.5) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | May 6, 1883 |
| Catalog names | |
| NGC 5581 • PGC 51282 • CGCG 133-038 • MCG + 04-34-021 • 2MASX J14211626 + 2328476 • LEDA 51282 | |
NGC 5581 is an elliptical galaxy with an active nucleus of the Hubble type E-S0 in the constellation Bear Guardian in the northern sky . It is estimated to be 207 million light years away from the Milky Way and has a diameter of about 50,000 ly.
In the same area of the sky is the galaxy IC 1006 .
The object was discovered by Édouard Stephan on May 6, 1883 .
Web links
- NGC 5581. SIMBAD, accessed March 15, 2016 .
- NGC 5581. DSO Browser, accessed March 15, 2016 .
- Auke Slotegraaf: NGC 5581. Deep Sky Observer's Companion, accessed on March 15, 2016 .