NGC 5989
| Galaxy NGC 5989 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Dragon |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 15 h 41 m 32.8 s |
| declination | + 59 ° 45 ′ 19 ″ |
| Appearance | |
| Morphological type | Sc |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 13.8 mag |
| Angular expansion | 0.9 ′ × 0.9 ′ |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 402 |
| Redshift | 0.009600 ± 0.000050 |
| Radial velocity | (2878 ± 15) km / s |
|
Stroke distance v rad / H 0 |
(136 ± 9) · 10 6 ly (41.7 ± 2.9) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | May 25, 1788 |
| Catalog names | |
| NGC 5989 • UGC 9985 • PGC 55802 • CGCG 297-028 • MCG + 10-22-34 • IRAS 15405 + 5954 • 2MASX J15413284 + 5945191 • GC 4134 • H III 738 • LDCE 1141 NED005 | |
NGC 5989 is a 13.0 likes bright spiral galaxy of Hubble type Sc in the constellation Draco the northern sky . It is estimated to be 136 million light years from the Milky Way and about 35,000 light years in diameter. The galaxy is a member of the NGC 5982 group , which also includes NGC 5976 , NGC 5981 , NGC 5985, and NGC 5987 .
The object was discovered on May 25, 1788 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "vF, vS".