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- Protostars: A protostar is a young, developing star that has not yet ignited nuclear fusion in its core. It forms from the gravitational collapse of a molecular cloud, which consists of gas and dust. One example of a protostar is the young star T Tauri, which is located about 460 light-years away in the constellation Taurus.
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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]
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Apr 12, 2024 · What is a Protostar? A protostar is a stage in the formation of a star where a dense cloud of gas and dust begins to collapse under its own gravity. This collapse triggers the process of nuclear fusion, which eventually leads to the birth of a new star.
Nov 21, 2023 · A protostar is the earliest stage of a star's life cycle; you can compare it to a baby. Protostars form in a stellar nursery , which means the molecular clouds where stars form.
May 28, 2024 · These embryonic stars are the precursor to fully-fledged stars, marking a critical phase in astronomical phenomena. The formation and evolution of protostars are pivotal in astrophysics, offering insights into stellar characteristics and the dynamic processes of star formation.
Apr 9, 2024 · Protostars become stars when nuclear fusion begins in their cores. This process involves the fusion of hydrogen atoms into helium, releasing energy in the form of light and heat. Once fusion ignites, the protostar starts shining brightly and becomes a main sequence star.
Aug 30, 2004 · Protostars. The image below shows a very young protostar, still deeply embedded in its dust cloud. The star itself is the bright red spot near the base of the dark region. The bright spots above the star and strange spikes are artifacts in the image.
Protostar. Stars begin to form from clouds of gas in space. The cold temperatures and high densities (compared to elsewhere in space, but would be considered a vacuum on Earth) of these clouds allow gravity to overcome thermal pressure and start the gravitational collapse that will form a star.
