NGC 5040
| Galaxy NGC 5040 |
|
|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 13 m 32.6 s |
| declination | + 51 ° 15 ′ 30 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 14.3 mag |
| Brightness (B-band) | 15.1 mag |
| Angular expansion | 1.0 ′ × 0.5 ′ |
| Position angle | 66 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.025064 +/- 0.000110 |
| Radial velocity | 7514 +/- 33 km / s |
|
Stroke distance v rad / H 0 |
(340 ± 24) x 10 6 ly (104.2 ± 7.3) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 26, 1789 |
| Catalog names | |
| NGC 5040 • PGC 45945 • CGCG 271-024 • MCG + 09-22-031 • GC 3462 • H II 816 • | |
NGC 5040 , also NGC 5040-1 , is a 14.3 mag bright spiral galaxy of the Hubble type S in the constellation of the hounds . It is around 340 million light years away from the Milky Way . Due to measured velocities, it only appears optically as a double galaxy together with the non-NGC object PGC 3087263 (also called NGC 5040-2 ), which is more than twice as far away .
It was discovered on April 26, 1789 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "F, S, iR, vgmbM".