Star Life and Death # 3

Classical Mechanics Level 3

A star has a mass of 10-30 times the mass of the sun, has starting to run out hydrogen to fuse, and has a temperature range of 10 , 000 − 30 , 000 10,000-30,000 Kelvin. What kind of star is it?

Blue Supergiant White Supergiant Wolf-Rayet Stars Red Supergiant

Arjun Shrivastava by Arjun SHRIVASTAVA , 16, USA

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1 solution

Arjun Shrivastava
Jul 19, 2018

Stars with the above discription are known as Blue Supergiant stars. Temperatures above 10,000 K suggest a blueish color , and the mass suggests that the star radiates huge amounts of energy and finally the "running out of hydrogen suggests that the star has expanded several times the size of itself (just like red giants). Now if some of you are wondering : Why could not this be a blue giant ? Well a blue giant is much hotter(18,000-25,000) than the range of temperature of a supergiant and is less luminous than a blue supergiant.

2 Helpful 0 Interesting 0 Brilliant 0 Confused

Blue Supergiant stars are not only known for their high mass and blueish color but also for their extreme Brightness. The best example is Rigel, the brightest star in the constellation Orion. It is 18-20 times the mass of the sun , 80 times bigger and over 100,000 times more luminous.

Arjun SHRIVASTAVA - 2 years, 10 months ago

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