JKCS 041 is acluster ofgalaxies with the distinction, as of 2009, of being the farthestgalaxy cluster observed from Earth.[1] It is estimated to be 10.2 billionlight-years away,[2] seen atredshift 1.9.[3] The cluster is located in the constellationCetus at a photometrically determined redshift of z=1.9 at right ascension2h 26m 44s declination −04° 41′ 37″ (J2000.0).[4] There are at least 19 members in the cluster.[2]
