Nebula Wiki - What is the nebula?
A nebula (Latin for "cloud" or "fog"; pl. nebulae, nebulæ, or nebulas) is an interstellar cloud of dust, hydrogen, helium and other ionized gases. Originally, the term was used to describe any diffuse astronomical object, including galaxies beyond the Milky Way. The Andromeda Galaxy, for instance, was once referred to as the Andromeda Nebula (and spiral galaxies in general as "spiral nebulae") before the true nature of galaxies was confirmed in the early 20th century by Vesto Slipher, Edwin Hubble and others. Most nebulae are of vast size; some are hundreds of light years in diameter. A nebula that is barely visible to the human eye from Earth would appear larger, but no brighter, from close by. The Orion Nebula, the brightest nebula in the sky and occupying an area twice the diameter of the full Moon, can be viewed with the naked eye but was missed by early astronomers. Although denser than the space surrounding them, most nebulae are far less dense than any vacuum created on Earth – a nebular cloud the size of the Earth would have a total mass of only a few kilograms. Many nebulae are visible due to fluorescence caused by embedded hot stars, while others are so diffuse they can only be detected with long exposures and special filters. Some nebulae are variably illuminated by T Tauri variable stars. Nebulae are often star-forming regions, such as in the "Pillars of Creation" in the Eagle Nebula. In these regions the formations of gas, dust, and other materials "clump" together to form denser regions, which attract further matter, and eventually will become dense enough to form stars. The remaining material is then believed to form planets and other planetary system objects. .
What does the word nebula mean? Find synonyms, antonyms and the meaning of the word nebula in our free online dictionary! Find words starting with nebula and anagrams of nebula.
Definitions of "nebula"
- Astronomy A diffuse mass of interstellar dust or gas or both, visible as luminous patches or areas of darkness depending on the way the mass absorbs or reflects incident radiation. noun
- Astronomy See galaxy. noun
- Pathology A cloudy spot on the cornea. noun
- Pathology Cloudiness in the urine. noun
- A liquid medication applied by spraying. noun
- A cloud in outer space consisting of gas or dust (e.g. a cloud formed after a star explodes). noun
- A white spot or slight opacity of the cornea. noun
- A cloudy appearance in the urine noun
- A faint, cloudlike, self-luminous mass of matter situated beyond the solar system among the stars. The term was originally applied to any diffuse luminous region. Now, technically, it is applied to interstellar clouds of dust and gases (diffuse nebula). However distant galaxies and very distant star clusters often appear like them in the telescope, such as the spiral nebula in Andromeda, known now to be a distant galaxy. noun
- A white spot or a slight opacity of the cornea. noun
- A cloudy appearance in the urine. noun
- A luminous patch in the heavens, far beyond the limits of the solar system. noun
- In pathology, a cloud-like spot on the cornea. noun
- cloudiness of the urine noun
- (pathology) a faint cloudy spot on the cornea noun
- a medicinal liquid preparation intended for use in an atomizer noun
- an immense cloud of gas (mainly hydrogen) and dust in interstellar space noun
The word "nebula" in example sentences
And yet the work of Fabry and Buisson, which has been verified by Professor Frost at the Yerkes Observatory, shows that the nebula is a seething mass of gaseous matter where there is no rest and over whose vast bulk relative motions of several miles a second are constantly, taking place.. [Photographing the Sky]
Fringing the outlines of the nebula is a system of whisker-like rays.. [Photographing the Sky]
The nebula is clearly a planetary nebula, and the gas seen above composed the outer layers of a sun-like star only 10,000 years ago.. [SETI Institute: Life at the SETI Institute: Paul Estrada -- From Dust to Planets]
I know that a planetary nebula is different than a hydrogen cloud.. [About: The Progressive Diminishment of Man]
E: When in nebula mode (press N), this greatly accentuates the nebula clouds, making them very easy to see.. [iTunes 8 Visualizer’s Undocumented Keyboard Controls | Lifehacker Australia]
(A nebula is an interstellar cloud of gas, dust and plasma where stars can both emerge and die.) “This spectacular event is the death of a star,” said study team member James Lloyd of Cornell University.. [Discovery of the Red Square Nebula | Impact Lab]
I was originally a superintelligent nebula from a universe beyond yours.. [The Secret Origin of Snuffles the Dragon]
Snuffles was in reality a superintelligent nebula from a parallel universe, but he had transformed into a dragon in order to visit our universe and had become trapped in that form, adopted by this dragon couple who had no children.. [Scandal Rocks The Sci Fi Catholic]
The crab nebula is the remnant from a supernova explosion 1054.. [High Energy Neutrinos from Cosmos]
This planetary nebula is so spectacular, I never get tired of looking at it - NGC 2392, from Hubble. [Archive 2005-03-01]
Aldebaran, and as far as that faint stain of sprinkled worlds confluent in the distance that we call the nebula of Orion, -- looking on, Sir, with what organs I know not, to see which are going to melt in that fiery fusion, the accidents and hindrances of humanity or man himself,. [The Atlantic Monthly, Volume 03, No. 18, April, 1859]
One of the component gases of this mighty nebula is called helium, so named because it was first found in the sun.. [Photographing the Sky]
The embryo does not more strive to be man, than yonder burr of light we call a nebula tends to be a ring,. [Ralph Waldo Emerson]
The embryo does not more strive to be man, than yonder burr of light we call a nebula tends to be a ring, a comet, a globe, and parent of new stars.. [Nature: Addresses and Lectures (1849)]
The scenes dealing directly with the Cylon attack and subsequent exodus to the whateveritwascalled nebula were the worst.. [You Will Know the Disgrace, Bryan Caplan | EconLog | Library of Economics and Liberty]
Its extreme temperature of at least 200,000 K and possibly up to 400,000 K ionizes the gas in the nebula, which is itself composed of ejecta from the star as it shed its corona during the later stages of its life.. [Very First Image of a Very Hot Star | Universe Today]
Nebula TranslatesNebula English to Turkish Translate
i. (çoğ. -lae) astr. pek uzak olduğundan bulut gibi görünen yıldızlar yığını, nebula; tıb. gözbebeğine arız olan duman. spiral nebula sarmal yapılı yıldız takımı, spiral nebula.i. (çoğ. -lae) astr. pek uzak olduğundan bulut gibi görünen yıldızlar yığını, nebula; tıb. gözbebeğine arız olan duman. spiral nebula sarmal yapılı yıldız takımı, spiral nebula.