Image of the day

Captured by
RICHARD COFER

Lunar Occultation of Jupiter (Egress)

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Thor's Helmet 2014 image

Thor's Helmet 2014


Acquisition Details
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Description

Thor's Helmet is the product of a Wolf-Rayet star in its pre-nova stage of life. This planetary nebula is thirty light years in diameter and 15,000 light-years distant.