NGC 6781 is a good instance of a planetary nebula — and one in every of Dave’s favourite deep-sky objects.
NGC 6781 is a planetary nebula in Aquila generally referred to as the Snow Globe Nebula. By means of a telescope, attempt utilizing a nebula or OIII filter to carry out the ring. Credit score: Eric Coles/Bob Fera
The Snow Globe Nebula (NGC 6781) is a novel planetary nebula mendacity 1,500 light-years away within the constellation Aquila. The article will get its title as a result of the inside of the ring is partially clear, permitting factors of starlight to return by, showing like snowflakes suspended in a snow globe.
Along with being an awesome deep-sky object, it’s additionally a preview of what our personal solar system will one day be: Planetary nebulae are fashioned when stars just like the Solar attain the tip of their lives and turn out to be unstable, shaking off their outer layers of fuel on their technique to turning into a white dwarf.
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