CL 1358+62 (ClG 1358+62) is a galaxy cluster located at z=0.33

redshift In physics, a redshift is an increase in the wavelength, and corresponding decrease in the frequency and photon energy, of electromagnetic radiation (such as light). The opposite change, a decrease in wavelength and simultaneous increase in f ...

. Behind the cluster (which itself lies at a distance of about 3.9 billion light years), lensed into a red arc is an infant

galaxy A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity. The word is derived from the Greek ' (), literally 'milky', a reference to the Milky Way galaxy that contains the Solar System. ...

(

CL 1358+62 G1 CL or cl may refer to: Arts and entertainment * CL (rapper) or Lee Chae-rin (born 1991), singer and rapper, former leader of the K-pop girl group 2NE1 * Creative Loafing, a newspaper publisher Brands and enterprises * Colgate-Palmolive's NYS ...

) that was the farthest object in the observable universe for a few months. It had a record redshift of z=4.92 and was discovered on July 31, 1997 by M. Franx and G. Illingsworth. It is located approximately 26 billion

light year A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (), or 5.88 trillion miles ().One trillion here is taken to be 1012 ...

s from Earth. Its redshift was measured by the

Keck Telescope The W. M. Keck Observatory is an astronomical observatory with two telescopes at an elevation of 4,145 meters (13,600 ft) near the summit of Mauna Kea in the U.S. state of Hawaii. Both telescopes have aperture primary mirrors, and when co ...

shortly after its discovery. Along with G1, another galaxy also lensed, was found to be at z=4.92 ( CL 1348+62 G2). The pair of galaxies were the first things other than

quasar A quasar is an extremely Luminosity, luminous active galactic nucleus (AGN). It is pronounced , and sometimes known as a quasi-stellar object, abbreviated QSO. This emission from a galaxy nucleus is powered by a supermassive black hole with a m ...

s to have the title of most distant object found, since the 1960s. The pair of galaxies remained the most distant objects known until the discovery of RD1 at z=5.34,arXiv, , 11 March 1998 the first object to exceed

References

External links

Announcement of discovery on Hubble Telescope site
*
ESA-Hubble
Galaxy clusters Draco (constellation) {{galaxy-cluster-stub

See also

References

External links