January 9, 2007
Sloan and the seven — make that eight — dwarfs:
Many more predicted
One of the most intriguing finds is Leo T, about 1.4 million light years away, on the fringes of the Milky Way's gravitational influence. Distinct from the other finds, Leo T has old and young star populations, and its star-forming days may not be over. In the preceding illustration, Leo T - whose discovery was confirmed only in the last month - would be located roughly behind arm A of the Sagittarius stream (144 degrees Right ascension, 17 degrees Declination).
Credit — Mike Irwin, the SDSS-II Collaboration