Happy Valentine’s Day

Written by The Night Sky Guy on February 14, 2010 – 3:52 pm -

Here is a pretty picture postcard from a corner of the universe we call the constellation Cassiopeia. This is a glowing cloud of hydrogen gas that happens to take on the familiar shape of a heart and so is  called appropriately the Heart nebula. It spans about 300 light years across and lies 6000 light years from Earth.  This magnificent emmision nebula is the birthplace of many still young massive stars seen scattered across this photo.

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