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What kind of nebula was it born in how long did it stay in the smaller stages in the life of a proto star? What will it turn into when it dies and runs out of fuel? When it dies what stages will it go through? Red giant, white dwarf, will it nova? What color is this star?

2007-04-23 14:12:39 · 2 answers · asked by shadowcat1204 2 in Science & Mathematics Astronomy & Space

2 answers

Spica is a blue-blue binary in which each star is about 7 times the mass of the sun. It is a blue dwarf and burns very hotly and very fast. It was born of a diffuse nebula and had a very brief T-tauri stage because the two stars together formed at about the same time and are almost the same size and cleared their local areas of dust and debris fairly quickly.
Their time spent as a protostar was fairly short. Being more massive, they underwent a more rapid gravitational collapse than the sun did. They achieved the fusion point in critical mass and temperature quite quickly.
When Spica ages, both stars will enter the final stages of their lives about the same time (astronomically speaking). One may enter the Red Giant stage sooner than the other. Since they are only .12 AU apart, the first to go Red Giant will almost certainly engulf the other and they will merge. The resulting mass will surely be large enough to cross the Chandrasekhar Limit and will finally go supernova. There may also be enough mass to cross the Oppenheimer Limit and will result in a black hole after the explosion.

2007-04-26 00:46:17 · answer #1 · answered by sparc77 7 · 0 0

based on the sheer number of stars you can see in the sky when you are out in the country with no light pollution around I would say yes there are aliens. It would be arrogant (and Typical) of the human race to think that of all the stars in the universe that fill our sky only our little earth is capable of sustaining life. Beyond that who is to say that our definition of life is the absolute and who says that a planet has to be like earth for life to exist. Fish live under water, humans can't (naturally), doesn't mean that because the conditions aren't ideal for us that life can't exist there. Just because we can't live on a planet with no atmosphere or a high radiation count doesn't mean that another form of life couldn't.

2016-04-01 04:17:43 · answer #2 · answered by Anonymous · 0 0

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