NGC 1645
| Galaxy NGC 1645 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Eridanus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 04 h 44 m 06.4 s |
| declination | -05 ° 27 ′ 56 ″ |
| Appearance | |
| Morphological type | (R ') SB (rs) 0+ / pec / LINER |
| Brightness (visual) | 13.0 likes |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 2.1 ′ × 0.9 ′ |
| Position angle | 85 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 1667 group LGG 118 |
| Redshift | 0.016345 ± 0.000040 |
| Radial velocity | 4900 ± 12 km / s |
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Stroke distance v rad / H 0 |
(215 ± 15) x 10 6 ly (65.9 ± 4.6) Mpc |
| history | |
| discovery | Heinrich d'Arrest |
| Discovery date | October 31, 1864 |
| Catalog names | |
| NGC 1645 • PGC 15903 • MCG -01-13-002 • 2MASX J04440640-0527567 • GALEX ASC J044406.23-052757.6 • LDCE 312 NED033 | |
NGC 1645 is a lenticular galaxy with extensive star formation regions of the Hubble type S0 / a / P in the constellation Eridanus in the southern sky . It is an estimated 215 million light-years from the Milky Way and about 135,000 light-years across.
The galaxies NGC 1643 , NGC 1656 , NGC 1659 , NGC 1677 are located in the same area of the sky .
The object was discovered on October 31, 1864 by Heinrich Louis d'Arrest .
Web links
Commons : NGC 1645 - collection of images, videos, and audio files
