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Protostar - Wikipedia
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. For a low-mass star (i.e. that of the Sun or lower), it lasts about 500,000 years.
en.wikipedia.org
en.wikipedia.org
Protostar - Las Cumbres Observatory
A protostar looks like a star but its core is not yet hot enough for fusion to take place. The luminosity comes exclusively from the heating of the protostar ...
lco.global
lco.global
Protostars and Nebulae - ASPIRE
A protostar is formed as gravity begins to pull the gases together into a ball. This process is known as accretion.
sunshine.chpc.utah.edu
sunshine.chpc.utah.edu
protostar
ˈprotostar Astr. [f. proto- + star n.1] A contracting mass of gas in which nucleosynthesis has not yet begun, representing an early stage in the formation of a star.1954 H. Alfvén Orig. Solar Syst. xii. 188 This condensation may have taken place from a ‘protostar’ of the type considered by Spitzer a...
Oxford English Dictionary
prophetes.ai
Star Basics - NASA Science
When this happens, friction causes the material to heat up, which eventually leads to the development of a protostar – a baby star.
science.nasa.gov
science.nasa.gov
Glossary term: Protostar - IAU Office of Astronomy for Education
A protostar is an early stage in the star formation process. It is a large mass of gas and dust formed as a result of the contraction of a giant molecular ...
astro4edu.org
astro4edu.org
ProtoStar
ProtoStar I
The ProtoStar I satellite was built by Space Systems/Loral (SS/L) based on the SS/L 1300 spacecraft design. system for ProtoStar I.
wikipedia.org
en.wikipedia.org
Protostars | American Scientist
Stellar embryos—protostars—lie hidden within the dust of the Rho Ophiuchi dark cloud, a star-forming region about 400 light-years away ...
www.americanscientist.org
www.americanscientist.org
Protostar | COSMOS - Centre for Astrophysics and Supercomputing
A protostar is a stellar-like object formed from dense clumps, before hydrogen burning, and is also known as a Young Stellar Object (YSO).
astronomy.swin.edu.au
astronomy.swin.edu.au
PROTOSTAR Definition & Meaning - Merriam-Webster
The meaning of PROTOSTAR is a cloud of gas and dust in space believed to develop into a star.
www.merriam-webster.com
www.merriam-webster.com
Protostars - an overview | ScienceDirect Topics
Protostars are defined as the early stages of stellar formation that occur when a portion of an interstellar cloud collapses to form a massive disk, leading to ...
www.sciencedirect.com
www.sciencedirect.com
Protostar (EP)
Protostar (stylized as PROTOSTAR) is an extended play (EP) marketed as the debut single of Japanese boy group JO1, formed through the reality competition Protostar eventually ranked sixth on Oricon's mid-year chart, and tenth on the Combined Singles Sales category.
wikipedia.org
en.wikipedia.org
Protostar: War on the Frontier
Protostar: War on the Frontier is a 1993 science fiction video game produced by Tsunami Media that blends elements of role-playing, space exploration, A sequel, Protostar 2, was planned but never released.
wikipedia.org
en.wikipedia.org
PROTOSTAR
《PROTOSTAR》是日本男子组合JO1的出道单曲,于2020年3月4日由发行。
概要
单曲分为附有DVD的初回限定盘A、附有Photo Booklet的初回限定盘B以及通常盘。《无限大》收录于所有版本。
wikipedia.org
zh.wikipedia.org
SES-7
Spacecraft
ProtoStar-2 is a geosynchronous communications satellite built by Boeing. It is a BSS-601HP satellite bus. The satellite was later converted into the ProtoStar-2 satellite, which was launched in May 2009.
wikipedia.org
en.wikipedia.org