Tucana III dwarf galaxy

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Galaxy
Tucana III dwarf galaxy
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Tucana 3
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AladinLite
Constellation Toucan
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 23 h 56 m 36.0 s
declination -59 ° 36 ′ 0.0 ″
Appearance
Morphological type dSph  
Brightness  (visual) (14.16 ± 0.42) mag
Physical data
Affiliation Local group  
distance (81,500 ± 6,500) ly /
(25,000 ± 2,000) pc
Absolute brightness (−2.4 ± 0.42) mag
history
discovery Dark Energy Survey
Discovery date 2015
Catalog names
Tuc III dSph

The Tucana III dwarf galaxy , also Tucana III or Tucana 3 for short , is a dwarf galaxy of the type dSph discovered in 2015 in the constellation Tukan in the Local Group and one of the satellite galaxies of the Milky Way .

properties

Tuc III dSph has a half-light radius of , which corresponds to a size of (44 ± 6) pc at a distance of about 25 kpc  .  

additional

Web links

Individual evidence

  1. ^ NED
  2. A. Drlica Wagner: Eight ultra-faint galaxy candidates discovered in Year Two of the Dark Energy Survey . In: The Astrophysical Journal . 813, No. 2, November 4, 2015, p. 109. doi : 10.1088 / 0004-637X / 813/2/109 .