NGC 5023
| Galaxy NGC 5023 |
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![High-resolution image of the central area of the spiral galaxy NGC 5023 [1] Hubble Space Telescope](https://upload.wikimedia.org/wikipedia/commons/thumb/7/74/Potw1512a.tif/lossy-page1-300px-Potw1512a.tif.jpg)
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| High-resolution image of the central area of the spiral galaxy NGC 5023 Hubble Space Telescope | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 13 h 12 m 11,600 s |
| declination | + 44 ° 02 ′ 28.40 ″ |
| Appearance | |
| Morphological type | Scd |
| Brightness (visual) | 12.1 mag |
| Brightness (B-band) | 12.8 mag |
| Angular expansion | 5.8 ′ × 0.8 ′ |
| Position angle | 28 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | Messier 51 group NGC 5194 group LGG 347 |
| Redshift | 0.001358 ± 0.000003 |
| Radial velocity | 407 ± 1 km / s |
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Stroke distance v rad / H 0 |
(21 ± 2) · 10 6 ly (6.55 ± 0.46) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 9, 1787 |
| Catalog names | |
| NGC 5023 • UGC 8286 • PGC 45849 • CGCG 217-017 • MCG + 07-27-043 • IRAS 13099 + 4418 • GC 3452 • H II 664 • h 1559 • LDCE 867 NED133 | |
NGC 5023 is a 12.1 likes bright spiral galaxy with pronounced emission lines from the Hubble type Sc in the constellation Canes Venatici on the northern sky . It is estimated to be 21 million light years away from the Milky Way and about 30,000 light years in diameter. Together with nine other galaxies, it forms the NGC 5194 group ( LGG 347 ).
The object was discovered on April 9, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as “pB, mE sp-nf, nearly in the meridian, 5 ′ long, 0.75 ′ broad”.
Web links
Commons : NGC 5023 - collection of images, videos, and audio files
- NGC 5023. SIMBAD , accessed February 24, 2015 .
- NGC 5023. DSO Browser, accessed February 24, 2015 .
- Spektrum .de: amateur recordings [1]