Eridanus II dwarf galaxy

Database links to Eridanus II dwarf galaxy

Galaxy Eridanus II dwarf galaxy
Eridanus 2
AladinLite
Constellation	Eridanus
Position equinox :  J2000.0 , epoch : J2000.0
Right ascension	03 h 44 m 21.1 s
declination	-43 ° 31 ′ 59.5 ″
Appearance
Morphological type	dSph
Brightness  (visual)	(16.3 ± 0.1) mag
Physical data
Affiliation	Local group
distance	1238000 Lj / 380,000 pc
Absolute brightness	(−6.6 ± 0.1) mag
history
discovery	Dark Energy Survey
Discovery date	2015
Catalog names
Eri II dSph

The Eridanus II dwarf galaxy , also Eridanus II or Eridanus 2 for short , is a dwarf galaxy of the type dSph discovered in 2015 in the constellation Eridanus in the Local Group and one of the satellite galaxies of the Milky Way .

properties

Eri II dSph has a half-light radius of ′ , which corresponds to a size of ( )  pc at a distance of about 380 kpc . ${\displaystyle r_{h}=1,53_{-0,09}^{+0,14}}$  ${\displaystyle 169_{-9,8}^{+16}}$

additional

• List of galaxies in the local group

Web links

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

• EIGHT BEASTS OF THE SOUTHERN WILD: DISCOVERY OF NINE ULTRA FAINT SATELLITES IN THE VICINITY OF THE MAGELLANIC CLOUDS at: iop.org

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 .