Tucana IV dwarf galaxy

Database links to Tucana IV dwarf galaxy

Galaxy Tucana IV dwarf galaxy
Tucana 4
AladinLite
Constellation	Toucan
Position equinox :  J2000.0 , epoch : J2000.0
Right ascension	00 h 02 m 55.2 s
declination	-60 ° 51 ′ 0.0 ″
Appearance
Morphological type	dSph
Brightness  (visual)	(14.91 ± 0.28) mag
Physical data
Affiliation	Local group
distance	(156,000 ± 13,000) ly / (48,000 ± 4,000) pc
Absolute brightness	(−3.5 ± 0.28) mag
history
discovery	Dark Energy Survey
Discovery date	2015
Catalog names
Tuc IV dSph

The Tucana IV dwarf galaxy , also Tucana IV or Tucana 4 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 IV dSph has a half-light radius of ′ , which corresponds to a size of (127 ± 24) pc at a distance of about 48 kpc  . ${\displaystyle r_{h}=9,1_{-1,4}^{+1,7}}$ 

additional

• List of galaxies in the local group

Web links

• EIGHT ULTRA-FAINT GALAXY CANDIDATES DISCOVERED IN YEAR TWO OF THE DARK ENERGY SURVEY at: iop.org

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 .