HFLS3

HFLS3 is the name for a distant galaxy at z = 6.34 (i.e. 12.8 billion light-years), originating about 880 million years after the Big Bang.^[2] Its discovery was announced on 18 April 2013 as an exceptional starburst galaxy producing nearly 3,000 solar masses of stars a year.^[2] It was found using the far-infrared-capable Herschel Space Telescope.^[2] The galaxy was estimated to have 35 billion stars.^[3] It is 10–30 times the mass of other known galaxies at such an early time in the universe.

HFLS 3
Observation data (J2000 epoch)
Constellation	Draco
Right ascension	17h 06m 47.8s[1]
Declination	+58° 46′ 23″[1]
Redshift	6.34[1]
Heliocentric radial velocity	288866 km/s[1]
Distance	12.8 billion light-years (4.0 billion parsecs) (light travel distance) 28 billion light-years (8.6 billion parsecs) (present proper distance)
Characteristics
Mass	2.7×1011[2] M☉
Number of stars	35 billion (3.5×1010)
Notable features	Interacting galaxies
Other designations
1HERMES S350 J170647.8+584623,[1] [RCP2021] HFLS3

HFLS3 was subjected to a follow-up campaign by other telescopes due to its high redness. It was found in the HerMES campaign, which also found other very red sources.^[4]

See also

• List of the most distant astronomical objects