NGC 420
| Galaxy NGC 420 |
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|---|---|
![NGC 420 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC420_-_SDSS_DR14.jpg)
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| NGC 420 SDSS image | |
| AladinLite | |
| Constellation | fishes |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 12 m 09.65 s |
| declination | + 32 ° 07 ′ 23.4 ″ |
| Appearance | |
| Morphological type | S0: |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 2 ′ × 1.8 ′ |
| Position angle | 174 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 383 group LGG 18 |
| Redshift | 0.016712 ± 0.000033 |
| Radial velocity | 5010 ± 10 km / s |
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Stroke distance v rad / H 0 |
(231 ± 16) x 10 6 ly (70.7 ± 4.9) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | September 12, 1784 |
| Catalog names | |
| NGC 420 • UGC 752 • PGC 4320 • CGCG 501-127 • CGCG 502-003 • MCG + 05-03-083 • 2MASX J01120966 + 3207233 • GC 229 • H III 154 • h 90 • HIPASS J0110-30 • LDCE 74 NED043 | |
NGC 420 is a lenticular galaxy of the Hubble type S0 in the constellation Pisces on the ecliptic . It is estimated to be 231 million light years from the Milky Way and about 130,000 light years across. Together with 21 other galaxies, it is a member of the NGC 452 group ( LGG 18 ).
In the same area of the sky are u. a. the galaxies NGC 399 , NGC 403 , NGC 421 , IC 1652 .
The object was discovered on September 12, 1784 by the German-British astronomer Wilhelm Herschel at his English private observatory.
Web links
Commons : NGC 420 - collection of images, videos, and audio files
