Horologium II dwarf galaxy

Database links to Horologium II dwarf galaxy

Galaxy Horologium II dwarf galaxy
AladinLite
Constellation	Pendulum clock
Position equinox :  J2000.0 , epoch : J2000.0
Right ascension	03 h 16 m 32.1 s
declination	-50 ° 01 ′ 05 ″
Appearance
Morphological type	dSph
Brightness  (visual)	(16.9 ± 0.2) mag
Physical data
Affiliation	Local group
distance	(254,000 ± 26,000) ly / (78,000 ± 8,000) pc
Absolute brightness	(−2.6 ± 0.3) mag
history
discovery	Dark Energy Survey
Discovery date	2015
Catalog names
Hor II dSph

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

The distance to Earth is approximately 254,000 light years .

properties

Hor II dSph has a half-light radius of ′ , which corresponds to a size of (47 ± 10) pc at a distance of about 78 kpc  . ${\displaystyle r_{h}=2,09_{-0,41}^{+0,44}}$ 

additional

• List of galaxies in the local group

Web links

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

• HOROLOGIUM II: A SECOND ULTRA-FAINT MILKY WAY SATELLITE IN THE HOROLOGIUM CONSTELLATION at: iop.org

Individual evidence

1. ↑ Dongwon Kim, Helmut Jerjen: HOROLOGIUM II: A SECOND ULTRA-FAINT MILKY WAY SATELLITE IN THE HOROLOGIUM CONSTELLATION . In: The Astrophysical Journal Letters . 808: L39, May 19, 2015, p. 5. doi : 10.1088 / 2041-8205 / 808/2 / L39 .