vdB 1 vs IC 63
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vdB 1
vdB 1 is a reflection nebula in the constellation Cassiopeia and the first entry in Sidney van den Bergh's Catalog of Reflection Nebulae. Its bluish appearance comes from starlight scattered by surrounding dust rather than from the gas emitting its own light. The nebula is associated with the star BD+57°174 and is a target for deep-sky observers studying illuminated interstellar dust.
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IC 63
IC 63, unofficially nicknamed the Ghost of Cassiopeia, is an emission and reflection nebula located roughly 550 light-years away in the constellation Cassiopeia. The structure is physically shaped and illuminated by the high-energy radiation emitted by the nearby massive star Gamma Cassiopeiae. It presents a distinct combination of glowing red hydrogen gas and reflecting blue dust, making it a fre...
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