Astronomy Picture of Day: Dust Indicates Planets# Astronomy - 天文
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Fomalhaut Dust Disk Indicates Planets
Drawing Credit: David Hardy, ROE, ATC, NSF, NASA
Explanation: One of the brightest stars on the sky likely has planets. Fomalhaut, actually
the 17th brightest star in the night sky, is a mere 22 light-years away but only a fraction of
the age of our Sun. Recent observations in far infrared light with a detector cooled to near
zero kelvins indicate a dust disk surrounding Fomalhaut that has both a hole in the center
and a warped edge. Now the hole
Drawing Credit: David Hardy, ROE, ATC, NSF, NASA
Explanation: One of the brightest stars on the sky likely has planets. Fomalhaut, actually
the 17th brightest star in the night sky, is a mere 22 light-years away but only a fraction of
the age of our Sun. Recent observations in far infrared light with a detector cooled to near
zero kelvins indicate a dust disk surrounding Fomalhaut that has both a hole in the center
and a warped edge. Now the hole