NGC 5559
| Galaxy NGC 5559 |
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|---|---|
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| The barred spiral galaxy NGC 5559 captured by the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Bear keeper |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 14 h 19 m 12.8 s |
| declination | + 24 ° 47 ′ 55 ″ |
| Appearance | |
| Morphological type | SBb |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 14.9 mag |
| Angular expansion | 1.4 ′ × 0.4 ′ |
| Position angle | 67 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 381 |
| Redshift | 0.017232 +/- 0.000033 |
| Radial velocity | (5166 +/- 10) km / s |
|
Stroke distance v rad / H 0 |
(233 ± 16) x 10 6 ly (71.4 ± 5.0) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 10, 1785 |
| Catalog names | |
| NGC 5559 • UGC 9166 • PGC 51155 • CGCG 133-032 • MCG + 04-34-017 • IRAS 14169 + 2501 • 2MASX J14191279 + 2447550 • GC 3844 • H III 347 • h 1777 • LDCE 1053 NED003 | |
NGC 5559 is a 14.1 mag bright bar-spiral-shaped radio galaxy of the Hubble type SBb in the constellation Bear Keeper north of the celestial equator . It is estimated to be 233 million light years from the Milky Way and about 105,000 ly in diameter.
The object was discovered on April 10, 1785 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "vF, lE, S".
Web links
- NGC 5559. SIMBAD, accessed March 13, 2016 .
- NGC 5559. DSO Browser, accessed March 13, 2016 .
- astronews.com: Picture of the day September 5, 2017