Draco Dwarf

Draco Dwarf
Field image of the Draco dwarf spheroidal galaxy, by the Digitized Sky Survey
Observation data (J2000 epoch)
ConstellationDraco
Right ascension17h 20m 12.4s[1]
Declination+57° 54′ 55″[1]
Redshift−292 ± 21 km/s[1]
Distance260 ± 30 kly (75.4 kpc)[2][3][4]
Apparent magnitude (V)10.9[1]
Characteristics
TypeE pec[1]
Mass1.2×108[4][e] M☉
Apparent size (V)35.5′ × 24.5′[1]
Notable featuresHighest known dark matter concentrated object
Other designations
Draco Dwarf Spheroidal,[1] Draco dSph,[5] UGC 10822,[1] PGC 60095,[1] DDO 208,[1]
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The Draco Dwarf is a spheroidal galaxy which was discovered by Albert George Wilson of Lowell Observatory in 1954 on photographic plates of the National Geographic Society's Palomar Observatory Sky Survey (POSS).[6] It is part of the Local Group and a satellite galaxy of the Milky Way galaxy. The Draco Dwarf is situated in the direction of the Draco Constellation at 34.6°[7] above the galactic plane.

  1. ^ a b c d e f g h i j Cite error: The named reference ned was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference karachentsevetal2004 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Karachentsevetal2006 was invoked but never defined (see the help page).
  4. ^ a b Vitral, E.; et al. (2024). "HSTPROMO Internal Proper-motion Kinematics of Dwarf Spheroidal Galaxies. I. Velocity Anisotropy and Dark Matter Cusp Slope of Draco". The Astrophysical Journal. 970 (1): 1. arXiv:2407.07769. Bibcode:2024ApJ...970....1V. doi:10.3847/1538-4357/ad571c.
  5. ^ Cite error: The named reference Fariaetal2007 was invoked but never defined (see the help page).
  6. ^ Wilson, Albert George (February 1955), "Sculptor-Type Systems in the Local Group of Galaxies", Publications of the Astronomical Society of the Pacific, 67 (394): 27–29, Bibcode:1955PASP...67...27W, doi:10.1086/126754
  7. ^ Cite error: The named reference Hodge1964 was invoked but never defined (see the help page).