Grus I dwarf galaxy
Galaxy Grus-I dwarf galaxy |
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AladinLite | |
Constellation | crane |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 22 h 56 m 42.4 s |
declination | -50 ° 09 ′ 47.9 ″ |
Appearance | |
Morphological type | dSph |
Brightness (visual) | (17.0 ± 0.3) mag |
Physical data | |
Affiliation | Local group |
distance | 432,000 ly / 120,000 pc |
Absolute brightness | (−3.4 ± 0.3) mag |
history | |
discovery | Dark Energy Survey |
Discovery date | 2015 |
Catalog names | |
Gru I dSph |
The Grus I dwarf galaxy , also Grus I or Grus 1 for short , is a dwarf galaxy of the type dSph discovered in 2015 in the constellation Crane in the Local Group and one of the satellite galaxies of the Milky Way .
properties
Gru I dSph has a half-light radius of ′ , which corresponds to a size of ( ) pc at a distance of about 120 kpc .
additional
Web links
Commons : Constellation Crane - Collection of images, videos and audio files
Individual evidence
- ↑ Sergey E. Koposov, Vasily Belokurov, Gabriel Torrealba, N. Wyn Evans: Beasts of the Southern Wild. Discovery of a large number of Ultra Faint satellites in the vicinity of the Magellanic Clouds . In: The Astrophysical Journal . 805, March 10, 2015, p. 130. doi : 10.1088 / 0004-637X / 805/2/130 .
- ↑ DES Collaboration: Eight New Milky Way Companions Discovered in First-Year Dark Energy Survey Data . In: The Astrophysical Journal . 807, March 10, 2015, p. 50. doi : 10.1088 / 0004-637X / 807/1/50 .