NGC 5009
| Galaxy NGC 5009 |
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|---|---|
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| SDSS | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 10 m 47.0 s |
| declination | + 50 ° 05 ′ 34 ″ |
| Appearance | |
| Morphological type | SBb |
| Brightness (visual) | 14.5 mag |
| Brightness (B-band) | 15.3 mag |
| Angular expansion | 1.1 ′ × 0.7 ′ |
| Position angle | 75 ° |
| Surface brightness | 14.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.031522 ± 0.000107 |
| Radial velocity | 9450 ± 32 km / s |
|
Stroke distance v rad / H 0 |
(426 ± 30) · 10 6 ly (130.7 ± 9.2) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 26, 1789 |
| Catalog names | |
| NGC 5009 • UGC 8258 • PGC 45739 • CGCG 245-025 • MCG + 08-24-061 • 2MASX J13104698 + 5005301 • GC 3440 • H III 820 • h 1550 • GALEX ASC J131046.92 + 500533.1 | |
NGC 5009 is a 14.5 mag bright barred spiral galaxy of the Hubble type SBb in the constellation Hounds in the northern sky . It is an estimated 426 million light years away from the Milky Way and has a diameter of about 135,000 ly
. a. the galaxy NGC 4998 .
The object was discovered on April 26, 1789 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as “2 vS stars at less than 1 ′ distance, with vF nebulosity between them”.