diffuse nebula

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Noun 1. [画像:diffuse nebula - a cluster of stars within an intricate cloud of gas and dust]diffuse nebula - a cluster of stars within an intricate cloud of gas and dust

gaseous nebula

nebula - an immense cloud of gas (mainly hydrogen) and dust in interstellar space

Orion, Hunter - a constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel

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Snugly protected by the Scutum shield, and approximately 1.50 north-east of the open cluster NGC 6631, is the diffuse nebula IC 1287.

Scutum the protective shield

M8 (NGC 6523) is a beautiful diffuse nebula, plainly visible to the naked eye as a glowing patch.

Star charts

Not completely true of course, but there is no doubting that it is a superb and deservedly popular object--the finest diffuse nebula in the northern sky--and probably the first target many telescopes acquired during the winter months are pointed at.

M42--the great nebula in Orion

It is a rich cluster of stars embedded in the diffuse nebula which extends slightly southwards away from the stars.

A misty cloud

Cataloged by Nicolas Louis de Lacaille as a diffuse nebula in 1751, 30 Doradus received its appellation 50 years later when Johann Bode included it in his Uranographia star atlas and accompanying catalog, in which he listed it as number 30 in Dorado.

Treasures & tarantula: researchers eagerly study a prodigious star-making factory in our galactic backyard