Draco II dwarf galaxy
Galaxy Draco II dwarf galaxy |
|
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AladinLite | |
Constellation | Dragon |
Position equinox : J2000.0 , epoch : J2000.0 |
|
Right ascension | 15 h 52 m 47.6 s |
declination | + 64 ° 33 ′ 55 ″ |
Appearance | |
Morphological type | dSph |
Brightness (visual) | (14.0 ± 0.3) mag |
Physical data | |
Affiliation | Local group |
distance | (71,700 ± 9,800) ly / (22,000 ± 3,000) pc |
Absolute brightness | (−2.9 ± 0.8) mag |
Metallicity [Fe / H] | −2.2 |
history | |
discovery | Pan-STARRS screening 1 |
Discovery date | 2015 |
Catalog names | |
Dra II dSph |
The Draco II dwarf galaxy , also known as Draco II or Draco 2 for short , is a dwarf galaxy of the type dSph discovered in 2015 in the constellation Dragon in the Local Group and one of the satellite galaxies of the Milky Way .
properties
Dra II dSph has a half-light radius of ′ , which corresponds to a size of pc at a distance of about 22 kpc .
additional
Web links
Commons : Constellation Dragon - Collection of images, videos and audio files
Individual evidence
- ↑ Benjamin PM Laevens: SAGITTARIUS II, DRACO II AND LAEVENS 3: THREE NEW MILKY WAY SATELLITES DISCOVERED IN THE PAN-STARRS 1 3π SURVEY . In: The Astrophysical Journal . 813, No. 1, November 1, 2015, p. 9. doi : 10.1088 / 0004-637X / 813/1/44 .