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The universe is all worked up
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Nebulas | ||||
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| What a nebula? |  [Fast reading of the page] Of the Latin ' nebula ' which wants to say cloud, clouds of gas and dusts in the middle of stars, nebulas are at the same moment active crèches and cemeteries of stars. These magnificence of the sky are enlightened by the stars which they contain or by stars situated behind them. It is the most beautiful images of astronomy that we can obtain at present. | |||
| From Latin ' nebula ' which wants to say cloud, clouds of gas and dusts in the middle of stars, nebulas are at the same moment active crèches and cemeteries of stars. These magnificence of the sky are enlightened by the stars which they contain or by stars situated behind them. It is the most beautiful images of astronomy that we can obtain at present. Nebulas make us admire in the field of the telescope of magnificent conglomerations of stars and gas flooding the sky. More the telescope is powerful more the images are magnificent. Only long poses will reveal the whole palette of colors in particular the surprising pink color of the hydrogen. William Hershel discovered the dark nebulas, the clouds of gas and dusts without star, too dense to allow to pass the light of stars situated behind. | Notes: ESA (European Space Agency) European Southern Observatory (ESO, the European Organization for Astronomical Research in the Southern Hemisphere. NGC (New General Catalog) is one of the best known catalogs in the field of amateur astronomy with the Messier catalog.
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| Nebula of north America or NGC 7000 | category : nebulas | |||
| The nebula NGC 7000 or the nebula of North America is a nebula of enormous emission (3x2.3 degree. NGC 7000 is visible in the bare eye in the Milky Way, in 3 degrees east of Deneb in the constellation of the Swan. By a long photographic exposure, this nebula looks like the outline of the continent of North America, with a particularly good replica of the Gulf of Mexico. Its red light is due to the gas of warmed hydrogen. Several other nebulas (IC 5070, IC 5068) are nearby of NGC 7000. NGC 7000 is a chaotic complex within which get involved and become confused, dark veils of absorbent matter and vast stellar clouds were incited by an extremely warm blue star of the name of HD 199579. |
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| Nebula lagoon or NGC 6523 or M8 | category : nebulas | |||
| Brilliant Misty of the Lagoon is a magnificent, easily visible object in the bare eye as a big foggy task situated at a distance considered in 5000 years light. M8 is a very big nebula with brilliant emission with an incorporated opened group. This group of young stars warms the gas of the nebula, it causes a emission of light. Seen through binoculars the way sinks which divides the brilliant regions of the nebula, looks like a lagoon where from the name of this object. With a small telescope we begin to perceive the complex folds of this nebula and the dark regions among more brilliant sectors. The dark parts of the nebula are the dense clouds of gas and dusts which are a nursery of stars. To the naked eye, the light of the heap is dominated by a red global light which is provoked by the brilliant gaseous hydrogen, whereas dark strands result from the absorption by dense bands of dust. | The image opposite, taken by the telescope Curtis-Schmidt, show the nebula in emission in three precise colors emitted specifically by the hydrogen, the oxygen and the sulfur. The Nebula of the Lagoon is situated in approximately 5000 light years of the Earth in the constellation of the Sagittarius. The nebula covers a region furthermore with three times the diameter of the Full moon.
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Nebula NGC 1893 or IC 410 | category : nebulas | |||
| Magnificent rose of the heavens of the north hemisphere, the nebula by emission IC 410 or NGC 1893 is in about 12 000 light years of us in the constellation of the Coachman. Brilliant cloud of hydrogen measures more than 100 light years of length. It was sculptured by the stellar winds and the radiations emitted since the heap opened by stars NGC 1893 nested within it. Formed in the interstellar cloud there is hardly 4 million years, the brilliant stud with the heap are visible just below the vast dark cloud of dust close to the center of the image. Within 7 hours of this sight with big field detailed well, we notice two relatively dense currents of matter seeming to pass by central regions of the nebula. Possible places of formation of stars, these cosmic tadpoles measure about 10 light years of length. |
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Nebula Trifide or M20 | category : nebulas | |||
The nebula Trifide is brilliant misty circular one situated in the Sagittarius, rich in stars. It is at the same moment a nebula with emission and with reflection. |
This spectacular sight wrongly colored is taken by the Telescope Spatial Spitzer. The astronomers used the infrared images Spitzer to consider embryonic stars hidden in the native dust of this schemer stellar crèche. This image shows the nebula divided into three dark parts, darkening zones of dust which reveal strands of gas as well as births of brilliant stars. |
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Nebula Helix or NGC 7293 | category : nebulas | |||
The nebula of the Helix is a cosmic star often photographed by the amateur astronomers for its lively colors and its resemblance with a gigantic eye. The nebula discovered to 18th century, is situated in approximately 650 light years in the constellation of the Aquarius and belongs to a class of called objects misty global. | The brilliant red circle situated in the center is the light of a disk of dust surrounding the white dwarfish star. All the internal planets of the system were carbonized or vaporized whereas the volume of the dying star increased.
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Related subjects | ||||
 Constellations | ||||
| Nebulas | ||||
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The universe is all worked up
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| Astronomy - October 15, 2007 |
