RD1 (radio Station)
RD1 or 0140+326 RD1 is a distant galaxy, it once held the title of most distant galaxy known. RD1 was discovered in March 1998, and is at ''z'' = 5.34,arXiv,  , 11 March 1998 and was the first object found to exceed redshift 5.New York TimesPeering Back in Time, Astronomers Glimpse Galaxies Aborning, October 20, 1998 It bested the previous recordholders, a pair of galaxies at z=4.92 lensed by the galaxy cluster CL1358+62, CL 1358+62 (CL 1358+62 G1 & CL 1358+62 G2). It was the List of most distant astronomical object record holders, most distant object known to mankind for a few months in 1998, until BR1202-0725 LAE was discovered at ''z'' = 5.64. Distance measurements The "distance" of a far away galaxy depends on the chosen Distance measures (cosmology), distance measurement. With a redshift of 5.34, light from this galaxy is estimated to have taken around 12.5 Giga-, billion years to reach us. But since this galaxy is receding from Earth, the present comoving distance i ...
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