Tina W.

asked • 08/03/13

is the sun a planet

I was wondering if the sun is a planet?

4 Answers By Expert Tutors

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Inactive Tutor answered • 08/03/13

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Inactive Tutor

Uhh...probably more than 100 solar masses as well. What about VY Canis Majoris, for example?

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08/04/13

Inactive Tutor

I don't have an information about the mass of the object.

100 solar masses is an approximate theoretical limit. More precisely, it' defcined by Eddington's lunimosity limit, at which the radiation pressure is strong enough to overcome gravity (stars with masses above this limit are expected to be unstable). 46 solar masses I used above, is an old data (approximately 20 yeras ago).  

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08/04/13

Inactive Tutor

It is possible for a star to exceed the 100 solar mass limit, though it would have only been possible for stars in the early universe. Having a near zero metallicity, stars could have grown to be exceedingly large, much larger than any star we have observed to this day.

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08/04/13

Inactive Tutor answered • 08/03/13

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