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How does the main-sequence lifetime of a star compare to its entire fusion lifetime?
The main-sequence lifetime is a phase in a star's life when it fuses hydrogen into helium in its core. This phase typically lasts about 90% of a star's total fusion lifetime. After the main sequence, a star may continue to fuse other elements, depending on its mass, which will determine the total duration of its fusion lifetime.
The star 61 cygni B has a main sequence lifetime of about how many years?
The star 61 Cygni B is estimated to have a main sequence lifetime of approximately 10 billion years.
Cluster ages can be determined from?
main sequence turn off
What percentage of a star's total lifetime is spent on the main sequence?
Roughly 90% of a star's total lifetime is spent on the main sequence, where it fuses hydrogen into helium in its core. After this stage, the star will evolve off the main sequence and follow a different path, such as becoming a red giant or a supernova.
Where does a star spend most of its lifetime on the h-r diagram?
On the main sequence.
Is the main sequence lifetime of a low mass star the same as the lifetime of the sun?
No. The less massive a star, the longer it will last. A main sequence star half the mass of the sun can be expected to last about 5 times longer.
The main squence lifetime of an O star compared with an M star?
An O star will stay on the main sequence for millions of years whereas a M star can stay on the main sequence for billions and billions of years.
Where does a star spend most of its lifetime on an h r diagram?
MAIN-SEQUENCE The average star spends 90% of its life as a hydrogen burning MS star.
What determines the amino acid sequence in a protein?
The sequence of amino acids in a protein is determined by the sequence of nucleotides in the mRNA, and this is determined by the sequence of nucleotide bases in the DNA.
What is the expected main sequence lifetime of wolf 359 a very dim star having 10 percent of the suns mass?
Wolf 359, with about 10% of the Sun's mass, is classified as a red dwarf star. Such stars have very long main sequence lifetimes due to their low mass and efficient hydrogen-burning processes. The expected main sequence lifetime of Wolf 359 is estimated to be around 10 to 30 billion years, significantly longer than the Sun's approximate 10 billion-year lifetime. This longevity is a characteristic feature of low-mass stars.
Size of main sequence star?
A main sequence star is NOT a TYPE of star but a period in a stars evolution. Therefore all stars from the hottest to the coolest are on the main sequence at some stage - with the exception of brown dwarfs which do not reach the main sequence.
Which star has a shorter lifetime on the main sequence a blue O star or a yellow G star?
an o-type blue star has a less length life than a g-type sun like star, this is because a the larger, hotter star, (the o-type blue star) uses its fuel (converting hydrogen into oxygen) quicker, so the correct answer to your question is the o-type blue star.
