Boötes I (dwarf galaxy)
The Boötes Dwarf Galaxy (Boo I dSph) is a faint galaxy, with a total luminosity of 100,000 Suns and an absolute magnitude of –5.8. It lies about 197,000 light-years away in the constellation Boötes. This dwarf spheroidal galaxy appears to be tidally disrupted[1] 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 is fainter than the star Rigel (absolute magnitude –6.8).
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References
- ^ a b c d e f g h Belokurov, V.; Zucker, D. B.; Evans, N. W.; Wilkinson, M. I.; Irwin, M. J.; Hodgkin, S.; Bramich, D. M.; Irwin, J. M.; Gilmore, G.; Willman, B.; Vidrih, S.; Newberg, H. J.; Wyse, R. F. G.; Fellhauer, M.; Hewett, P. C.; Cole, N.; Bell, E. F.; Beers, T. C.; Rockosi, C. M.; Yanny, B.; Grebel, E. K.; Schneider, D. P.; Lupton, R.; Barentine, J. C.; Brewington, H.; Brinkmann, J.; Harvanek, M.; Kleinman, S. J.; Krzesinski, J.; Long, D.; Nitta, A.; Smith, J. A.; Snedden, S. A. (2006). "A Faint New Milky Way Satellite in Bootes". The Astrophysical Journal 647 (2): L111–L114. arXiv:astro-ph/0604355. Bibcode 2006ApJ...647L.111B. doi:10.1086/507324.
- ^ "SIMBAD Astronomical Database". Results for Bootes dSph. http://simbad.u-strasbg.fr/Simbad. Retrieved 2006-12-20.
Coordinates: 14h 00m 06s, +14° 30′ 00″