Science
Astronomers study Triangulum Galaxy
Columbus, Ohio | August 04, 2006 12:01:13 AM IST
U.S. astronomers say that intergalactic trip to Triangulum will take a bit longer than you planned -- since the galaxy is farther from Earth than thought. Ohio State University astronomer Kris Stanek and colleagues have determined the Triangulum Galaxy, otherwise known as M33, is actually about 15 percent farther from our galaxy than previously measured. Stanek says the finding implies the Hubble constant -- a number that astronomers rely on to calculate a host of factors, including the size and age of the universe -- could be significantly off the mark as well. That means the universe might be 15 percent bigger and 15 percent older than any previous calculations suggested. The astronomers reached that conclusion after inventing a new method for calculating intergalactic distances -- one they say is more precise and much simpler than standard methods. Stanek, an associate professor of astronomy, and his co-authors describe the research in a paper to appear in the Astrophysical Journal. (UPI)
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