TERMIUM Plus®

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ABSORPTION NEBULA [1 record]

Record 1 2023-10-17

English

Subject field(s)
  • Astrophysics and Cosmography
  • Space Physics
DEF

A cloud of interstellar gas and dust that is sufficiently dense to obscure partially or completely the light from stars and other objects lying behind it and sufficiently large and suitably located to produce a noticeable effect.

CONT

Molecular clouds are so important because they are the raw material of stars and planets. A dark nebula (or dark cloud) is a very dense part of a bigger molecular cloud; the light extinction is caused by the high density and the presence of interstellar dust in these clouds.

OBS

dark nebulas; dark nebulae: plural forms.

OBS

absorption nebulas; absorption nebulae: plural forms.

Key term(s)
  • absorption nebulas
  • absorption nebulae

French

Domaine(s)
  • Astrophysique et cosmographie
  • Physique spatiale
CONT

Certaines nébuleuses [...] ne se manifestent que par la poussière qu'elles renferment en abondance : tel le cas des nébuleuses obscures, qui absorbent la lumière des astres situés derrière et se détachent en ombres chinoises sur le fond étoilé du ciel.

Spanish

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