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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.
How many years do spectral class O5 stars remain on the main sequence?
Spectral class O5 stars remain on the main sequence for around 3-4 million years before they evolve off the main sequence stage. These stars have extremely high luminosities and temperatures, leading to a short main sequence lifetime compared to lower mass stars.
Will Altair soon become a supernova?
Highly unlikely in our lifetime. Altair is still on the main sequence and probably has a few billion years left on it. Even when it comes to the end of the main sequence, it may not have enough mass to become a supernova.
What planets have three suns?
16 Cygni Ab, it is named like this since it orbits the main star, with two stars orbiting outside it's orbit. there are four objects in that system. 16 Cygni A, 16 Cygni B, 16 Cygni C, and 16Cygni Ab. to find out how the names work, there are plenty of lists out there on binary star/planet system naming.
What is the main sequence on the Hertzsprung-Russell diagram?
The main sequence on the Hertzsprung-Russell diagram represents the stage in a star's life when it is undergoing nuclear fusion of hydrogen into helium in its core. Stars spend the majority of their lifetime on the main sequence, where they maintain a stable balance between inward gravitational pressure and outward radiation pressure. The main sequence runs diagonally from high temperature, high luminosity stars (top left) to lower temperature, lower luminosity stars (bottom right).
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.
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.
Considering both longevity and luminosity which stars would be the most likely candidate for seeking extraterrestrial intelligence?
61 Cygni, a K2 main sequence star
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.
What is the number of years a star stays in main sequence?
The length of time that a star stays in the main sequence varies by a huge amount depending on its mass. The whole reason is much too long and complicated to be placed here. (You need to read an encyclopedia article on the different classes of the starts.) However, the simple summary is that the largest (and hottest) stars stay in the main sequence for the shorter lengths of time (like 10 million years), but the smaller and cooler stars (smaller than our Sun) stay in the main sequence for the longest lengths of time - billions and billions of years, really long, like 50 billion years. Our Sun is in between, and it has an estimated lifetime of about five billion years on 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.
How many years do spectral class O5 stars remain on the main sequence?
Spectral class O5 stars remain on the main sequence for around 3-4 million years before they evolve off the main sequence stage. These stars have extremely high luminosities and temperatures, leading to a short main sequence lifetime compared to lower mass stars.
What is the lifetime on the main sequence of a 2 solar mass star?
not very long because its about to supernova,,,,,,,,, i think again
Main sequence lifetime is determined by what?
The mass of the star. The bigger it is, the faster it will burn through its fuel supply.
Do main sequence stars only last a few hundred years?
No, main sequence stars last more then a few hundred years. Depending on their mass main sequence stars may last anywhere from several million to several trillion years. Our sun is a main sequence star that is about halfway through its 10 billion year duration.
