SPT0418−47

SPT0418−47 is a gravitationally lensed, high-redshift, dusty star-forming galaxy, discovered with the South Pole Telescope.^[3] Observations with NASA's James Webb Space Telescope (JWST) have revealed the presence of a companion galaxy,^[4][5] which may indicate that SPT0418−47 is a merging system of galaxies.

SPT0418−47
Observation data (J2000 epoch)
Constellation	Horologium
Right ascension	04h 18m 39.270s[1]
Declination	−47° 51′ 50.10″[1]
Redshift	4.2248[1]
Heliocentric radial velocity	278605 km/s[1]
Distance	12 billion light-years (light travel distance)[2] 24 billion light-years (present comoving distance)[2]
Other designations
SPT-S J041839−4751.8,[1] SPT-S J041839−4751.9 BG, [BAA2017] SPT0418−47

In June 2023 detection of organic molecules in SPT0418−47 using the Webb telescope was announced.^[6]