ISOHDFS 27
ISOHDFS 27 | |
---|---|
![]() ISOHDFS 27 taken by the Hubble Space Telescope | |
Observation data (J2000 epoch) | |
Constellation | Tucana |
Right ascension | 22h 32m 47.7s |
Declination | −60° 33′ 35.9″ |
Redshift | 0.5807±0.0003 |
Heliocentric radial velocity | 174,090 km/s (108,170 mi/s) |
Galactocentric velocity | 174,009 km/s (108,124 mi/s) |
Distance | 6 billion ly (1.8 billion pc) (light travel distance) 7 billion ly (2.1 billion pc) (comoving distance) |
Apparent magnitude (V) | 20.51 |
Characteristics | |
Type | Sab |
Mass | 1.04×1012 M☉ |
Size | 130 kly (40 kpc) |
Apparent size (V) | 0.07 × 0.07 |
Other designations | |
HDFS J223247.66-603335.9, LFR2003 193, SB-WF 3572-1508, CDD2000 1670, USNOA2 0225-31548819 |
ISOHDFS 27 is a spiral galaxy in the constellation Tucana, and was discovered in the Hubble Deep Field South survey. It is the most massive spiral galaxy found in the survey,[1] measuring 130,000 light-years (40,000 parsecs) in diameter.[2] It is located approximately 6 billion light-years (1.8 billion parsecs) from Earth[2] and has a mass greater than 1000 billion times the mass of the Sun, making it about four times as massive as the Milky Way.[1]
It was once thought to be the largest spiral galaxy in the universe,[1] but it has since been dethroned by NGC 6872.[3]
See also
[edit]External links
[edit]- "Massive spiral galaxy ISOHDFS 27" by the European Southern Observatory
- ISOHDFS 27 on SIMBAD
- ISOHDFS 27 on NASA/IPAC Extragalactic Database
References
[edit]- ^ a b c "Most Massive Spiral Galaxy Known in the Universe". European Southern Observatory Press Release: 25. 2000-12-01. Bibcode:2000eso..pres...25.
- ^ a b [email protected]. "Massive spiral galaxy ISOHDFS 27". www.eso.org. Retrieved 2023-09-22.
- ^ SVS (2013-10-17). "NASA Scientific Visualization Studio | The Largest-Known Spiral Galaxy". SVS. Retrieved 2023-09-22.