NGC 1222
| Galaxy NGC 1222 |
|
|---|---|
|
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| The lenticular galaxy NGC 1222 as captured by the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Eridanus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 03 h 08 m 56.7 s |
| declination | -02 ° 57 ′ 19 ″ |
| Appearance | |
| Morphological type | S0- / HII / Stbrst |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.5 likes |
| Angular expansion | 1.1 ′ × 0.9 ′ |
| Position angle | 169 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 1222 group LGG 85 |
| Redshift | 0.008079 ± 0.000017 |
| Radial velocity | 2422 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(107 ± 8) · 10 6 ly (32.9 ± 2.3) Mpc |
| history | |
| discovery | Edouard Stephan |
| Discovery date | December 5, 1883 |
| Catalog names | |
| NGC 1222 • PGC 11774 • MCG -01-09-005 • IRAS 03064-0308 • KUG 0306-031 • 2MASX J03085674-0257187 • Mrk 603 • GALEX ASC J030856.74-025718.0 • HIPASS J0308-02 | |
NGC 1222 is a lens-shaped galaxy with extensive star formation regions of the Hubble type S0 - in the constellation Eridanus in the southern sky . It is estimated to be 107 million light years from the Milky Way and about 35,000 light years across. A Hubble telescope image released on November 7, 2016 shows that the main galaxy absorbs two dwarf galaxies and creates starburst activity in all three galaxies.
Together with NGC 1248 , PGC 11885 , PGC 12068 , PGC 12130 , and PGC 11968 , it forms the NGC 1222 group .
The object was discovered on December 5, 1883 by the astronomer Edouard Stephan with the help of an 80 cm reflector telescope and was later recorded by Johan Dreyer in his New General Catalog .
NGC 1222 group ( LGG 85 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 1222 | PGC 11774 | 107 |
| NGC 1248 | PGC 11970 | 98 |
| PGC 11885 | MCG -01-09-013 | 99 |
| PGC 11968 | Mrk 604 | 95 |
| PGC 12068 | MCG -01-09-021 | 98 |
| PGC 12130 | MCG -01-09-024 | 102 |
Web links
Commons : NGC 1222 - collection of images, videos, and audio files
- SIMBAD Astronomical Database
- astronews.com: Picture of the day November 8, 2016