The galaxy holding Hubble's record for the most distant object it imaged is GN-z11. Hubble observed its extremely faint light as it existed roughly 13.4 billion years ago, when the universe was only about 400 million years old.
Astronomers first identified GN-z11 in Hubble images from the GOODS-North survey. Hubble's Wide Field Camera 3 detected the galaxy in near-infrared light, while follow-up observations using Hubble's grism spectroscopy measured its redshift and confirmed its extraordinary distance. The result, announced in 2016, surpassed the previous record-holder, EGSY8p7.
GN-z11's name combines its location in the GOODS-North field with its very high redshift. Because the universe has expanded while the light traveled, its present-day proper distance is much greater than 13.4 billion light-years; that figure describes the light-travel time and the age of the observed view.
The record needs careful wording. Later James Webb Space Telescope observations found galaxies farther away than GN-z11, but that does not erase GN-z11's status as Hubble's landmark distance record. JWST also refined measurements of GN-z11 itself.