NGC 1400
NGC 1400 is an elliptical galaxy in the constellation Eridanus. At a distance of 65 million light-years from Earth, it was discovered by John Herschel in 1786. It is a member of the NGC 1407 group, whose brightest member is NGC 1407. The NGC 1407 group is part of the Eridanus Cluster, a cluster of 200 galaxies.
NGC 1400 | |
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Hubble Space Telescope image of NGC 1400 | |
Observation data (J2000 epoch) | |
Constellation | Eridanus |
Right ascension | 03h 39.5m [1] |
Declination | −22° 23′[1] |
Distance | 20.23 Mpc (66 Mly) |
Apparent magnitude (V) | 12.3[1] |
Characteristics | |
Type | E0[1] |
Apparent size (V) | 2.3′ × 2.3′[1] (60,000 light-years in diameter) |
NGC 1400 is an early-type E0 galaxy. Despite their name, early-type galaxies are much older than spiral galaxies, and mostly comprise old, red-colored stars. Very little star formation occurs in these galaxies; the lack of star formation in elliptical galaxies appears to start at the center and then slowly propagates outward.[2]
NGC 1400 has had star formation in the past, which was caused by NGC 1400 falling into the NGC 1407 group. [3]
References
- Dunlop, Storm (2005). Atlas of the Night Sky. Collins. ISBN 978-0-00-717223-8.
- Howell, Elizabeth (2015). "Colossal Ancient Galaxies Die from the Inside Out". space.com. Retrieved 5 March 2017.
- https://www.researchgate.net/publication/1906704_The_early-type_galaxies_NGC_1407_and_NGC_1400_-_II_Star_formation_and_chemical_evolutionary_history