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SpaceEngine is an interactive 3D planetarium and astronomy software [2] initially developed by Russian astronomer and programmer Vladimir Romanyuk. [3] Development is now continued by Cosmographic Software, an American company founded by Romanyuk and the SpaceEngine Team in February 2022, based in Connecticut.
Ninety percent of all stars, with the exception of white dwarfs, are fusing hydrogen by these two processes. [21]: 245 In the cores of lower-mass main-sequence stars such as the Sun, the dominant energy production process is the proton–proton chain reaction.
The W51 nebula in Aquila - one of the largest star factories in the Milky Way (August 25, 2020). Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as "stellar nurseries" or "star-forming regions", collapse and form stars. [1]
Stars Without Number is a science fiction role-playing game set in the year 3200. The book provides a pre-generated series of planets, but the gamemaster can also use a system of nested random tables to first create a sector in space seeded with random stars. Each star has one main planet, which the gamemaster creates, giving it two randomly ...
The energy generated from ordinary stars comes from the nuclear fusion occurring at their centers. Protostars also generate energy, but it comes from the radiation liberated at the shocks on its surface and on the surface of its surrounding disk. The radiation thus created must traverse the interstellar dust in the surrounding dense core. The ...
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Natural stars can serve as point sources for this purpose, but sufficiently bright stars are not available in all parts of the sky, which greatly limits the usefulness of natural guide star adaptive optics. Instead, one can create an artificial guide star by shining a laser into the atmosphere. Light from the beam is reflected by components in ...