Friday, December 12, 2014

APOD 2.5

Stars and Dust Pillars in NGC 7822 from WISE: http://apod.nasa.gov/apod/ap141201.html


Towards Cepheus, this star forming region can be seen about 3,000 light years away. This photo was taken with infrared light by NASA's Wide Field Infrared Survey Explorer satellite. The atomic emission by the cluster's gas is powered by radiation from star. Stars could still be forming inside pillars through gravitational collapse. This field is around 40 light years wide. I love how the dust pillars are photographed. 

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