ISOHDFS 27
ISOHDFS 27 taken by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationTucana
Right ascension22h 32m 47.7s
Declination−60° 33′ 35.9″
Redshift0.5807±0.0003
Heliocentric radial velocity174,090 km/s (108,170 mi/s)
Galactocentric velocity174,009 km/s (108,124 mi/s)
Distance6 billion ly (1.8 billion pc) (light travel distance)
7 billion ly (2.1 billion pc)
(comoving distance)
Apparent magnitude (V)20.51
Characteristics
TypeSab
Mass1.04×1012 M☉
Size130,000 ly (40,000 pc)
Apparent size (V)0.07 × 0.07
Other designations
HDFS J223247.66-603335.9, LFR2003 193, SB-WF 3572-1508, CDD2000 1670

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

References

  1. 1 2 3 "Most Massive Spiral Galaxy Known in the Universe". European Southern Observatory Press Release: 25. 2000-12-01. Bibcode:2000eso..pres...25.
  2. 1 2 information@eso.org. "Massive spiral galaxy ISOHDFS 27". www.eso.org. Retrieved 2023-09-22.
  3. ↑ SVS (2013-10-17). "NASA Scientific Visualization Studio | The Largest-Known Spiral Galaxy". SVS. Retrieved 2023-09-22.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.