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The Smithsonian Astrophysical Observatory (SAO) is a "research institute" of the Smithsonian Institution. It is joined with the Harvard College Observatory (HCO) to form the Harvard-Smithsonian Center for Astrophysics (CfA). Because these research activities share Harvard and Smithsonian staff and resources, the links at this website will take you to information posted on the "CfA" pages.
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Weekly Science Updates
August 07, 2009Jets from a Possible Young Brown DwarfA brown dwarf, a star whose mass is less than about 8% of the sun's, lacks sufficient gravitational contraction to heat up its interior to the roughly ten million kelvin temperatures needed for hydrogen burning (hydrogen burning fuels the sun). Read More...
July 31, 2009Imaging a Giant Star's Dusty EnvelopeOne of the brightest stars in our galaxy is the aging, cool giant star NML Cygnus. It has a relatively enormous mass -- about forty times that of the sun -- and a luminosity nearly a million times larger than the sun's; it is also only about 5000 light-years away. Read More...
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