NGC 6154
| Galaxy NGC 6154 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 16 h 25 m 30.5 s |
| declination | + 49 ° 50 ′ 25 ″ |
| Appearance | |
| Morphological type | SB (r) a / LINER |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 2.1 ′ × 2.0 ′ |
| Position angle | 0 ° |
| Surface brightness | 14.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.020064 ± 0.000133 |
| Radial velocity | (6015 ± 40) km / s |
|
Stroke distance v rad / H 0 |
(276 ± 20) x 10 6 ly (84.7 ± 6.0) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | May 15, 1787 |
| Catalog names | |
| NGC 6154 • UGC 10382 • PGC 58095 • CGCG 251-016 • MCG + 08-30-012 • 2MASX J16253049 + 4950244 • GC 4201 • H III 680 • NSA 20757 | |
NGC 6154 is a 12.8 likes bright barred spiral galaxy with an active galactic nucleus from Hubble type SBa in the constellation Hercules at the northern sky . It is an estimated 276 million light years from the Milky Way and about 170,000 light years in diameter.
The object was discovered on May 15, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "vF, S, R, lbM, easily resolvable, near some small stars".