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The H II regions of the complex with a mass of less than 100 solar masses tend to form massive stars in an amount up to four times greater than other clouds; the cause for this would be either the high pressure imposed by the ionized gas at the edge of the clouds or the photolytic action of the radiation present in the H II regions themselves ...
A molecular cloud—sometimes called a stellar nursery if star formation is occurring within—is a type of interstellar cloud of which the density and size permit absorption nebulae, the formation of molecules (most commonly molecular hydrogen, H 2), and the formation of H II regions.
A image of the Cone nebula and the molecular cloud surrounding it This image was taken from the Mount Lemmon SkyCenter Schulman Telescope. The Cone Nebula is an H II region in the constellation of Monoceros. It was discovered by William Herschel on December 26, 1785, at which time he designated it H V.27.
But did you know that our tendency to see images in random objects like clouds, vegetation and even everyday objects comes down to an interesting psychological phenomenon called pareidolia?Famed ...
This nebula is in the western part [4] of the Perseus molecular cloud and is a young region of very active star formation, [6] being one of the best-studied objects of its type. [4] It contains a fairly typical hierarchy of star clusters that are still embedded in the molecular cloud in which they formed, [ 7 ] which are split into two main sub ...
The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy.The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter.
The Orion molecular cloud complex (or, simply, the Orion complex) is a star-forming region with stellar ages ranging up to 12 Myr. Two giant molecular clouds are a part of it, Orion A and Orion B. The stars currently forming within the complex are located within these clouds.
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