ISOHDFS 27 is a spiral galaxy in the constellation
Tucana
Tucana (The Toucan) is a constellation in the southern sky, named after the toucan, a South American bird. It is one of twelve constellations conceived in the late sixteenth century by Petrus Plancius from the observations of Pieter Dirkszoon K ...
, and was discovered in the
Hubble Deep Field South
The Hubble Deep Field South is a composite of several hundred individual images taken using the Hubble Space Telescope's Wide Field and Planetary Camera 2 over 10 days in September and October 1998. It followed the great success of the original ...
survey. It is the most massive spiral galaxy found in the survey,
measuring in diameter.
It is located approximately from
Earth
Earth is the third planet from the Sun and the only astronomical object known to Planetary habitability, harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all ...
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
The Milky Way or Milky Way Galaxy is the galaxy that includes the Solar System, with the name describing the #Appearance, galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars in other arms of the galax ...
.
It was once the largest known spiral galaxy,
but it has since been dethroned by
NGC 6872
NGC 6872, also known as the Condor Galaxy, is a large barred spiral galaxy, barred spiral galaxy of galaxy morphological classification, type ' in the constellation Pavo (constellation), Pavo. It is from Earth. is interacting galaxy, interactin ...
.
See also
*
List of galaxies
There are an estimated 100 billion galaxies in all of the observable universe.
On the order of 100,000 galaxies make up the Virgo Supercluster, Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a ...
External links
"Massive spiral galaxy ISOHDFS 27"by the European Southern Observatory
* on
SIMBAD
SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data) is an astronomy, astronomical database of objects beyond the Solar System. It is maintained by the Centre de données astronomiques de Strasbourg (CDS), Fr ...
*
References
Unbarred spiral galaxies
Tucana
Astronomical objects discovered in 2000
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