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

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

In June 2023 detection of organic molecules in SPT0418-47 using the Webb telescope was announced.

References

1. ^ "SPT-S J041839-4751.8". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-02-14.
2. ^ Edward L. (Ned) Wright. "Cosmology Calculator I". Astronomy @ UCLA. Retrieved 2010-10-22.
3. Vieira, J. D.; Marrone, D. P.; Chapman, S. C.; De Breuck, C.; Hezaveh, Y. D.; Weiβ, A.; Aguirre, J. E.; Aird, K. A.; Aravena, M.; Ashby, M. L. N.; Bayliss, M.; Benson, B. A.; Biggs, A. D.; Bleem, L. E.; Bock, J. J. (March 2013). "Dusty starburst galaxies in the early Universe as revealed by gravitational lensing". Nature. 495 (7441): 344–347. arXiv:1303.2723. Bibcode:2013Natur.495..344V. doi:10.1038/nature12001. ISSN 1476-4687. PMID 23485967. S2CID 4383464.
4. Peng, Bo; Vishwas, Amit; Stacey, Gordon; Nikola, Thomas; Lamarche, Cody; Rooney, Christopher; Ball, Catie; Ferkinhoff, Carl; Spoon, Henrik (2023-02-01). "Discovery of a Dusty, Chemically Mature Companion to a z 4 Starburst Galaxy in JWST ERS Data". The Astrophysical Journal. 944 (2): L36. arXiv:2210.16968. Bibcode:2023ApJ...944L..36P. doi:10.3847/2041-8213/acb59c. ISSN 0004-637X.
5. Cathey, Jared; Gonzalez, Anthony H.; Lower, Sidney; Phadke, Kedar A.; Spilker, Justin; Aravena, Manuel; Birkin, Jack E.; Birrer, Simon; Chapman, Scott (2023-07-01), Templates: Characterization of a Merger in the Dusty Lensing SPT0418-47 System, arXiv:2307.10115, retrieved 2024-03-05
6. Strickland, Ashley (2023-06-06). "Webb telescope detects organic molecules in distant galaxy". CNN. Retrieved 2023-06-06.

v t e Constellation of Horologium
List of stars in Horologium Horologium in Chinese astronomy
Stars	Bayer α β γ δ ζ η ι λ μ ν Variable R TW HD 27631 Other DENIS 0334-49 Gliese 146 GJ 1061
Exoplanets HD 27631 b ι Horologii b
Star clusters	NGC 1252 1261 Other Arp-Madore 1
Galaxies	NGC 1249 1433 1448 1483 1493 1510 1512 Other PKS 0226-559 SPT0418-47
Galaxy clusters Horologium Supercluster
Category

• Galaxies
• Horologium (constellation)
• Galaxies discovered in 2020