Abell 370 seen by the Hubble Space Telescope on 16 July 2009.
|Observation data (Epoch J2000)|
|Right ascension||02h 39m 50.5s|
|Declination||−01° 35′ 08″|
|1,464 Mpc (4,775 Mly) h−1
Abell 370 is a galaxy cluster located approximately 4 billion light-years away from the Earth (at redshift z = 0.375), in the constellation Cetus. Its core is made up of several hundred galaxies. It was catalogued by George Abell, and is the most distant of the clusters he catalogued.
Abell 370 appears to include several arcs of light, including the largest ever discovered with 30" long. These arcs or deformations are mirages caused by gravitational lensing of massive and dark objects located between the observer and the distant galaxies. This cluster shows an apparent magnitude of +22.
In 2009, study in the field of Abell 370 revealed a grouping of background galaxies lensed and distorted by the cluster into an arc with the appearance of a dragon, hence nicknamed The Dragon by NASA scientists. Its head is composed of a spiral galaxy, with another spiral composing the tail. Several other galaxies form the body of the dragon, all overlapping. These galaxies all lie approximately 5 billion light years away.
Abell 370 Parallel Field with Asteroids.
Abell 370 is one of the very first galaxy clusters in which astronomers observed the phenomenon of gravitational lensing.
- "NED results for object ABELL 0370". NASA/IPAC Extragalactic Database (NED). Retrieved March 15, 2012.
- Abell, George O.; Corwin, Harold G., Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies" (PDF). Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049. Retrieved March 12, 2012.
- New York Times, "SCIENCE WATCH; Mirages in the Sky May Not Be So Rare" Tuesday, October 18, 1988
- BBC News, "Far away stars light early cosmos" Thursday, 14 March 2002, 11:38 UTC
- Astronomy Now, "Refurbished Hubble gets off to a flying start" 09-09-09 (accessed 2009-11-07)
- New York Times, "The Universe, in High Definition" 09/09/09 (accessed 2009-11-07)
- New Scientist, "Upgraded Hubble telescope spies cosmic 'dragon' " 09.09.09 (accessed 2009-11-07)
- National Geographic, "NEW HUBBLE PICTURES: First Shots From Upgraded Orbiter" Saturday, November 7, 2009 (accessed 2009-11-07)
- "Abell 370 Parallel Field with Asteroids". www.spacetelescope.org. Retrieved 6 November 2017.
- "The last of the Frontier Fields — Abell 370". www.spacetelescope.org. Retrieved 6 May 2017.
- Gravitationally lensed images in Abell 370 Authors: Grossman, S. A. & Narayan, R. Bibcode: 1989ApJ...344..637G
- Image of Abell 370 released bu STScI HST in May 2017 : http://hubblesite.org/news_release/news/2017-20
- Abell 370 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- A lot of galaxies need guarding in this NASA Hubble view