Thursday, June 08, 2006
Neighboring galaxy has trillions of stars
From New Scientist, Andromeda galaxy hosts a trillion stars:
Using about 3000 separate exposures, Pauline Barmby of the Harvard-Smithsonian Center for Astrophysics in Cambridge, US, and her team found that the spiral galaxy has about a trillion stars.
This measurement is the first census of Andromeda's stars in the infrared part of the spectrum and agrees with previous estimates of the stars' combined mass.
