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Stellar Classifications (view source)
Revision as of 01:31, November 13, 2007
, 01:31, November 13, 2007New page: Stars given a designation consisting of a letter and a number according to the nature of their spectral lines which corresponds roughly to surface temperature. The classes are: O,...
[[Star|Stars]] given a designation consisting of a letter and a number according to the nature of their spectral lines which corresponds roughly to surface temperature. The classes are: O, B, A, F, G, K, and M; O stars are the hottest; M the coolest. The numbers are simply subdivisions of the major classes. The classes are oddly sequenced because they were assigned long ago before we understood their relationship to temperature. O and B stars are rare but very bright; M stars are numerous but dim. The Sun is designated G2.
==References==
*[http://solarsystem.nasa.gov/dictionary/index.cfm?Letter=S NASA Glossary]
[[Category:Astronomy]]
==References==
*[http://solarsystem.nasa.gov/dictionary/index.cfm?Letter=S NASA Glossary]
[[Category:Astronomy]]