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What is the first star life cycle?
Stage 1- Stars are born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity. This image shows the Orion Nebula or M42 . Stage 2 – A region of condensing matter will begin to heat up and start to glow forming Protostars.
What are the four stages of a stars life cycle?
Gas cloud.,Proto star,. Main sequence.. red giant, planetary nebula. white dwarf.
What are the 4 stages of the life of a star?
Which stars leave the main sequence first?
The most luminous and massive stars, found in the upper left part of the main sequence, are the first to leave the main sequence; their turnoff point in the H-R diagram can be used to clock the age of the star cluster.
What are the stages of the life cycle of stars?
Massive stars transform into supernovae, neutron stars and black holes while average stars like the sun, end life as a white dwarf surrounded by a disappearing planetary nebula. All stars, irrespective of their size, follow the same 7 stage cycle, they start as a gas cloud and end as a star remnant. 1. Giant Gas Cloud
What is the average lifespan of a star?
The exact lifetime of a star depends very much on its size. Very large, massive stars burn their fuel much faster than smaller stars and may only last a few hundred thousand years. Smaller stars, however, will last for several billion years, because they burn their fuel much more slowly. Life Cycle of a Star.
What is the origin of stars?
A star originates from a large cloud of gas. The temperature in the cloud is low enough for the synthesis of molecules. The Orion cloud complex in the Orion system is an example of a star in this stage of life. 2. Protostar
What happens when a star becomes a main sequence star?
After that, the star becomes a Main Sequence star. Also, it spends 90% of its life in this stage fusing with hydrogen molecule and forming helium. Most noteworthy, the sun is currently in this stage. 5. Expansion into Red Giant