NGC 5899
| Galaxy NGC 5899 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Bear keeper |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 15 h 15 m 03.2 s |
| declination | + 42 ° 02 ′ 59 ″ |
| Appearance | |
| Morphological type | SAB (rs) c / Sy2 |
| Brightness (visual) | 11.8 mag |
| Brightness (B-band) | 12.5 mag |
| Angular expansion | 3.3 ′ × 1.4 ′ |
| Position angle | 18 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.008546 ± 0.000017 |
| Radial velocity | (2562 ± 5) km / s |
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Stroke distance v rad / H 0 |
(120 ± 8) x 10 6 ly (36.8 ± 2.6) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 18, 1787 |
| Catalog names | |
| NGC 5899 • UGC 9789 • PGC 54428 • CGCG 221-043 • MCG + 07-31-45 • IRAS 15132 + 4214 • GC 4077 • H II 650 • h 1914 • | |
NGC 5899 is an 11.8 mag bright bar -spiral Seyfert galaxy (type 2) of the Hubble type SBc in the constellation Bear Keeper and about 120 million light years from the Milky Way.
It was discovered on March 18, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "pB, E, BNM and faint branch 2 ′ long, 0.25 ′ broad".