nebula
星云,恒星云,星系,星团
Related Words
Definitions
- 1
plural neb·u·lae [neb-yuh-lee, -lahy], /ˈnɛb yəˌli, -ˌlaɪ/, neb·u·las.
- : Astronomy. Also called diffuse nebula. a cloud of interstellar gas and dust.Compare dark nebula, emission nebula, reflection nebula. any celestial object that appears nebulous, hazy, or fuzzy, and extended in a telescope view.
- : Pathology. a faint opacity in the cornea.cloudiness in the urine.
- : any liquid medication prepared for use as a spray.
Synonyms & Antonyms
Examples
The top notes are listed as cosmic dust and antimatter particles, the heart of the fragrance is described as starlight, the scent of Supernova, and the base notes are atmospheric vapour, and dark nebulae.
So she and her colleagues examined 14 stars in the red giant phase, before they become planetary nebulae.
“The action of the shaping does not happen when the star becomes a planetary nebula,” Decin says, but is already happening hundreds of thousands to millions of years before, during the red giant phase.
Because planetary nebula shapes resemble these winds’ shapes, the researchers conclude that these same forces influence a nebula’s final shape, long before the nebula itself is created.
This means that it might be possible to predict the shapes of planetary nebulae long before they form, she says.
Following Anna Deavere Smith is like following a swiftly moving nebula.
And yet there are millions of stars whose distances are even greater than the distance of the Great Nebula in Orion.
The fainter parts of the nebula would be shown more satisfactorily by a longer exposure.
Then his vision cleared and he knew where he was—in the surgery room of the Nebula.
And, if we don't get too bored, we might run over to the giant model nebula in Andromeda, or one of the others.
One of the most exquisite of these modern photographs is that of the Trifid in Sagittarius (Fig. 142).