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The traditional classification scheme from hottest to coolest stars is: |
The traditional classification scheme from hottest to coolest stars is: |
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| − | * [[O-type star]] ( |
+ | * [[O-type star]] (blue in color) – [[FGC 1215]] B, [[Mintaka]] A |
| − | * [[B class star|B-type star]] ( |
+ | * [[B class star|B-type star]] (blue-white to blue in color) – [[Vandor]], [[Rigel]] |
| − | :''In real life, no red giant can actually belong to type B, as B-type stars are exclusively blue.'' |
+ | :''In real life, unlike Vandor, no red giant can actually belong to type B, as B-type stars are exclusively blue or blue-white.'' |
| − | * A-type star – [[FGC |
+ | * A-type star (white to bluish white)– [[FGC 1215]] A, [[Vega]], [[Sirius]] |
| − | * [[F-type star]] – [[Orellius Minor]], [[Canopus]] |
+ | * [[F-type star]] (white)– [[Orellius Minor]], [[Canopus]] |
| − | * [[G-type star]] ( |
+ | * [[G-type star]] (yellow) – [[Calindra]], [[Hemikek]], [[Sol]] |
| − | + | * K-type star (Orange in color) – [[Alpha Centauri]] B, [[Arcturus]], [[Aldebaran]] |
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| − | * |
+ | * M-type star (Red in color, includes [[red dwarf]], [[red giant]]) – [[Proxima Centauri]], [[Vulcan system|40 Eridani C]], [[Betelgeuse]] |
| − | * M-type star ([[red dwarf]], [[red giant]]) – [[Proxima Centauri]], [[40 Eridani A]], [[Betelgeuse]] |
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==External link== |
==External link== |
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* {{Wikipedia|Stellar classification}} |
* {{Wikipedia|Stellar classification}} |
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[[Category:Astronomy]] |
[[Category:Astronomy]] |
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[[de:Spektralklasse]] |
[[de:Spektralklasse]] |
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| − | [[ |
+ | [[fr:Type spectral]] |
| + | [[ja:スペクトル型]] |
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[[nl:Spectrale klasse]] |
[[nl:Spectrale klasse]] |
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Revision as of 06:57, 22 November 2013
In astronomy, the term spectral type refers to the stellar magnitude of a star based on its temperature and color.
The sun Sigma Draconis was classified with a spectral type of Gamma 9. (TOS: "Spock's Brain")
Classification
The traditional classification scheme from hottest to coolest stars is:
- O-type star (blue in color) – FGC 1215 B, Mintaka A
- B-type star (blue-white to blue in color) – Vandor, Rigel
- In real life, unlike Vandor, no red giant can actually belong to type B, as B-type stars are exclusively blue or blue-white.
- A-type star (white to bluish white)– FGC 1215 A, Vega, Sirius
- F-type star (white)– Orellius Minor, Canopus
- G-type star (yellow) – Calindra, Hemikek, Sol
- K-type star (Orange in color) – Alpha Centauri B, Arcturus, Aldebaran
- M-type star (Red in color, includes red dwarf, red giant) – Proxima Centauri, 40 Eridani C, Betelgeuse