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A protostar is a very young star that is still gathering mass from its parent molecular cloud. It is the earliest phase in the process of stellar evolution . [ 1 ] For a low-mass star (i.e. that of the Sun or lower), it lasts about 500,000 years. [ 2 ]
A pre-main-sequence star (also known as a PMS star and PMS object) is a star in the stage when it has not yet reached the main sequence.Earlier in its life, the object is a protostar that grows by acquiring mass from its surrounding envelope of interstellar dust and gas.
Protostar: War on the Frontier is a 1993 science fiction video game produced by Tsunami Media that blends elements of role-playing, space exploration, space combat, and strategy. The player commands a spaceship from a first-person perspective in real-time capable of traveling to the various planets in the game world and launching an explorer ...
LRLL 54361 also known as L54361 is thought to be a binary protostar producing strobe-like flashes, located in the constellation Perseus in the star-forming region IC 348 and 950 light-years away. The object may offer insight into a star's early stages of formation, when large masses of gas and dust are falling into a newly forming binary star ...
IRAS 04125+2902 b (TIDYE-1 b) is an extrasolar planet orbiting a young protostar. It is the youngest transiting exoplanet so far discovered, with an age of just three million years. Characteristics
A star forms by accumulation of material that falls in to a protostar from a circumstellar disk or envelope. Material in the disk is cooler than the surface of the protostar, so it radiates at longer wavelengths of light producing excess infrared emission. As material in the disk is depleted, the infrared excess decreases.
V883 Orionis is a protostar in the constellation of Orion. It is associated with IC 430 (Haro 13A), a peculiar Hα object surveyed by Guillermo Haro in 1952. [4] It is assumed to be a member of the Orion Nebula cluster at 414 ± 7 pc. [2] V883 Orionis, like most protostars, is surrounded by a circumstellar disc of dust.
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