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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.
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.
Cluster ages can be determined from?
main sequence turn off
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 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.
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.
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.
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.
