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Mark Fisher
1999-2008
Blue Snowball Nebula
NGC 7662, PK 106-17.1
A planetary nebula in the west of Andromeda, nearly 4,000 light years from the Solar System. Though it is very faint from Earth (its apparent magnitude is +9.2), the Blue Snowball is in fact a vast cloud of expanding gas more than two light years across.
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