HD1 (galaxy)

HD1 is a possible high-redshift galaxy. It is thought to be the earliest and most distant known galaxy yet identified in the observable universe.
The discovery of HD1 (RA:10:01:51.31 DEC:+02:32:50.0) in the Sextans constellation, along with a related galaxy, HD2 (RA:02:18:52.44 DEC:-05:08:36.1) in the Cetus constellation. It was reported by astronomers at the University of Tokyo on 7 April 2022.