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单词 θ1230
释义
the world > the universe > constellation > nebula > [noun] > planetary nebula (4)
dumb-bell nebula184.

a nebula of this shape in the constellation Vulpecula.

crab1868

Astronomy. Name of a nebula or star-cluster in Taurus.

planetary1903

Astronomy. A planetary nebula.

reflection nebula1936

a nebula which is visible only by virtue of the starlight which it reflects; cf. emission nebula n. at emission, n. compounds.

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更新时间:2024/12/24 11:08:52