| MS 0302+17 Supercluster | |
|---|---|
| Observation data (Epoch J2000) | |
| Constellation(s) | Aries |
| Right ascension | 03h05m 25.8s[1] |
| Declination | +17° 17′ 54″[1] |
| Redshift | z = 0.42[1] |
| Distance | 4,485 Gly |
| See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters | |
MS 0302+17 is a galaxy supercluster located in the constellation Aries at a distance of 4.485 billion light years (lookback time), equivalent to a comoving distance of 5.338 billion light years. The dimensions are around 6 million parsecs.[1][2]
MS 0302+17 contains three massive galaxy clusters. Of these the first, known as CL 0303+1706 was discovered by Alan Вressler and Jim Gunn, using a conventional optical telescope; it is located along the eastern edge of the supercluster and consists of an important concentration of reddish galaxies. Observations made with the Einstein X-ray Observatory revealed the existence of two other clusters: MS 0302+1659 and MS 0302+1717, which are located near the northern edge of the observation field. The MS prefix derives from Medium Sensitivity because X-ray observations are part of the Einstein Medium Sensitivity Survey.[3][1] An interesting fact of the survey is a couple of giant arches located near the luminous central galaxies of MS0302+1659, images of remote galaxies enhanced by the gravitational lensing phenomenon created by the supercluster.[3]
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