NGC 5403
| Galaxy NGC 5403 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 59 m 50.9 s |
| declination | + 38 ° 10 ′ 57 ″ |
| Appearance | |
| Morphological type | SBb |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 3.1 ′ × 0.7 ′ |
| Position angle | 145 ° |
| Surface brightness | 14.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.009160 ± 0.000017 |
| Radial velocity | 2846 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(126 ± 9) · 10 6 ly (38.7 ± 2.7) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | May 16, 1787 |
| Catalog names | |
| NGC 5403 • UGC 8919 • PGC 49820 • CGCG 191-029 • MCG + 06-31-41 • IRAS 13577 + 3825 • VV 310a • GC 3739 • H III 683 • h 1726 • | |
NGC 5403 , sometimes referred to as the mini-sombrero , is a 13.7 mag bright barred spiral galaxy of the Hubble type SBb in the constellation of the Hounds .
It was discovered on May 16, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "cF, pL, iF". Together with the galaxy UGC 8919 N , which was discovered much later , it forms a gravitationally bound galaxy pair.
Web links
- NGC 5403. SIMBAD, accessed February 27, 2016 .
- NGC 5403. DSO Browser, accessed February 27, 2016 .
- Hartmut Frommert: Revised NGC Data for NGC 5403. SEDS, accessed on February 27, 2016 (English).