Right ascension 14 00 06 Type dSph Magnitude 13.1 Apparent magnitude (V) 13.1 | Declination +14° 30′ 00″ ± 15″ Apparent size (V) 26′.0 ± 1′.4 Constellation Boötes | |
Distance 197 ± 18 kly (60 ± 6 kpc) Similar Ursa Major II Dwarf, Leo IV, Draco Dwarf, Ursa Minor Dwarf, Leo II | ||
The Boötes Dwarf Galaxy (Boo I dSph) is a galaxy, which appears faint, with a luminosity of 100,000 L☉ and an absolute magnitude of –5.8. It lies about 197 thousand light-years (60.4 kiloparsecs) away in the constellation Boötes. This dwarf spheroidal galaxy appears to be tidally disrupted by the Milky Way Galaxy, which it orbits, and has two stellar tails that cross over to form a cross. Tidally disrupted galaxies usually only form one tail.
Like many of the ultrafaint dwarf spheroidals, the entire galaxy appears fainter than the Rigel system (absolute magnitude –7.84).
References
Boötes I (dwarf galaxy) Wikipedia(Text) CC BY-SA