MACS 2129-1

MACS 2129-1
Observation data (J2000 epoch)
Constellation	Aquarius
Right ascension	21h 29m 22.20s [1]
Declination	−07° 41′ 31.2″ [1]
Redshift	2.15 [1]
Heliocentric radial velocity	244,898 km/s [1]
Distance	~ 10  billion   ly (3.1 billion  pc) (light travel distance) 18  billion   ly (5.5 billion  pc) (present proper distance)
Apparent magnitude  (V)	23.8
Characteristics
Type	Disc galaxy
Size	~50,000 ly (diameter)
Other designations
[GRM2013] MACS J2129-0741 1

MACS 2129-1 is an early universe so-called 'dead' disk galaxy discovered in 2017 by the Hubble Space Telescope from NASA. ^[2] It lies approximately 10 billion light-years away from Earth (current distance 18 billion light years) . ^{[3] [4]} MACS 2129-1 has been described as 'dead' as it has ceased making new stars.

See also

• List of galaxies

References

1. "[GRM2013] MACS2129-1". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2024-10-24.
2. "Hubble Captures Massive Dead Disk Galaxy that Challenges Theories of Galaxy Evolution | Astronomy | hubblesite.org". HubbleSite | hubblesite.org. 21 June 2017. Retrieved 2023-10-03.
3. "Hubble Spots Massive, 'Dead' Disk Galaxy in Early Universe | Astronomy | Sci-News.com". Breaking Science News | Sci-News.com. 23 June 2017. Retrieved 2021-01-25.
4. Toft, Sune; Zabl, Johannes; Richard, Johan; Gallazzi, Anna; Zibetti, Stefano; Prescott, Moire; Grillo, Claudio; Man, Allison W. S.; Lee, Nicholas Y.; Gómez-Guijarro, Carlos; Stockmann, Mikkel; Magdis, Georgios; Steinhardt, Charles L. (2017). "A massive, dead disk galaxy in the early Universe". Nature. 546 (7659): 510–513. arXiv: 1706.07030 . Bibcode:2017Natur.546..510T. doi:10.1038/nature22388. PMC   6485677 . PMID   28640271.