Wednesday, June 22, 2016

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Stars | Causes of Color - Webexhibits

www.webexhibits.org/causesofcolor/18B.html
The sun has a surface temperature of 5,500 K, typical for a yellow star. ... generated than in the main sequence, and the star expands to become a red giant. ... from infrared images, yellow from visible light, and green and blue from x-ray data.
You visited this page on 5/11/16.

Star - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Star
Wikipedia
A star is a luminous sphere of plasma held together by its own gravity. The nearest star to Earth ..... Large lengths, such as the radius of a giant star or the semi-major axis of a binary star system, are often expressed in .... The core is compressed into a neutron star, which sometimes manifests itself as a pulsar or X-ray burster.

Betelgeuse - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Betelgeuse
Wikipedia
Coordinates: Sky map 05 55 10.3053, +07° 24′ 25.426″. Betelgeuse, also known by its ... Betelgeuse is one of three stars that make up the Winter Triangle, and it ... telescopes with different technical parameters to measure the stellar giant, ... suggesting that the star may have spent time as a yellowsupergiant around the ...

The Natures of the Stars - Jim Kaler

stars.astro.illinois.edu/sow/star_intro.html
Galaxies, The Galaxy, Galaxy clusters, Giant stars and helium fusion, Globular clusters, High mass stars ... White dwarfs, Winds and mass loss, X-ray doubles ..... We commonly see these helium- fusing stars as yellow-orange type K giants

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