Pictor I dwarf galaxy

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Galaxy
Pictor-I dwarf galaxy
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Pictor 1
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AladinLite
Constellation painter
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 04 h 43 m 47.4 s
declination -50 ° 16 ′ 58.8 ″
Appearance
Morphological type dSph  
Brightness  (visual) (17.2 ± 0.2) mag
Physical data
Affiliation Local group  
distance 372,000 ly /
114,000 pc
Absolute brightness (−3.1 ± 0.2) mag
history
discovery Dark Energy Survey
Discovery date 2015
Catalog names
Pic I dSph

The Pictor I dwarf galaxy , also Pictor I or Pictor 1 for short , is a dwarf galaxy of the type dSph discovered in 2015 in the constellation Maler in the Local Group and one of the satellite galaxies of the Milky Way .

The distance to Earth is approximately 372,000 light years .

properties

Pic I dSph has a half-light radius of , which corresponds to a size of ( )  pc at a distance of about 114 kpc .  

additional

Web links

Commons : Constellation Painter  - Collection of images, videos and audio files

Individual evidence

  1. 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 .
  2. 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 .