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    constellation of Cassiopeia tagged posts

    The Ghost of Cassiopeia

    October 28, 2018, Categories  Astronomy/Space

    IC 63 -- nicknamed the Ghost Nebula -- is about 550 light-years from Earth. The nebula is classified as both a reflection nebula -- as it is reflecting the light of a nearby star -- and as an emission nebula -- as it releases hydrogen-alpha radiation. Both effects are caused by the gigantic star Gamma Cassiopeiae. The radiation of this star is also slowly causing the nebula to dissipate. Credit: ESA/Hubble, NASA

    IC 63 — nicknamed the Ghost Nebula — is about 550 light-years from Earth. The nebula is classified as both a reflection nebula — as it is reflecting the light of a nearby star — and as an emission nebula — as it releases hydrogen-alpha radiation. Both effects are caused by the gigantic star Gamma Cassiopeiae. The radiation of this star is also slowly causing the nebula to dissipate.
    Credit: ESA/Hubble, NASA

    About 550 light-years away in the constellation of Cassiopeia lies IC 63, a stunning and slightly eerie nebula. Also known as the ghost of Cassiopeia, IC 63 is being shaped by radiation from a nearby unpredictably variable star, Gamma Cassiopeiae, which is slowly eroding away the ghostly cloud of dust and gas...

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