Astronomy:MACS 2129-1
From HandWiki
| MACS 2129-1 | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Aquarius |
| Right ascension | 21h 29m 22.12s |
| Declination | −07° 41′ 31.94″ |
| Redshift | 2.15 |
| Helio radial velocity | 643,864 km/s |
| 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.[1] It lies approximately 10 billion light-years away from Earth (current distance 18 billion light years) .[2][3] MACS 2129-1 has been described as 'dead' as it has ceased making new stars.
See also
References
- ↑ "Hubble Captures Massive Dead Disk Galaxy that Challenges Theories of Galaxy Evolution | Astronomy | hubblesite.org" (in en-US). 21 June 2017. https://hubblesite.org/contents/news-releases/2017/news-2017-26.html.
- ↑ "Hubble Spots Massive, 'Dead' Disk Galaxy in Early Universe | Astronomy | Sci-News.com" (in en-US). 23 June 2017. http://www.sci-news.com/astronomy/hubble-massive-dead-disk-galaxy-early-universe-04980.html.
- ↑ Toft, Sune; Zabl, Johannes; Richard, Johan; Gallazzi, Anna; Zibetti, Stefano; Prescott, Moire; Grillo, Claudio; Man, Allison W. S. et al. (2017). "A massive, dead disk galaxy in the early Universe". Nature 546 (7659): 510–513. doi:10.1038/nature22388. PMID 28640271. Bibcode: 2017Natur.546..510T.
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