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In [[astronomy]], the term '''spectral type''' refers to the stellar magnitude of a [[star]] based on its [[temperature]] and color. |
In [[astronomy]], the term '''spectral type''' refers to the stellar magnitude of a [[star]] based on its [[temperature]] and color. |
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| − | The sun |
+ | The sun [[Sigma Draconis]] was classified with a spectral type of Gamma 9. ({{TOS|Spock's Brain}}) |
==Classification== |
==Classification== |
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| − | The traditional classification scheme from hottest |
+ | The traditional classification scheme from hottest to coolest stars is: |
| − | * [[O-type star]] ( |
+ | * [[O-type star]] (blue in color) – [[FGC 1215]] B, [[Mintaka]] A |
| + | * [[B class star|B-type star]] (blue-white to blue in color) – [[Vandor]], [[Rigel]] |
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| − | * B-type star |
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| + | :''In real life, unlike Vandor, no red giant can actually belong to type B, as B-type stars are exclusively blue or blue-white.'' |
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| − | * A-type star |
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| − | * |
+ | * 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]] |
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| − | * K-type star |
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| − | * |
+ | * K-type star (Orange in color) – [[Alpha Centauri]] B, [[Aldebaran]] |
| + | * M-type star (Red in color, includes [[red dwarf]], [[red giant]]) – [[Proxima Centauri]], [[Vulcan system|40 Eridani C]], [[Betelgeuse]] |
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| − | ==External |
+ | ==External link== |
* {{Wikipedia|Stellar classification}} |
* {{Wikipedia|Stellar classification}} |
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| + | |||
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[[Category:Astronomy]] |
[[Category:Astronomy]] |
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| + | [[de:Spektralklasse]] |
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| + | [[fr:Type spectral]] |
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| + | [[ja:スペクトル型]] |
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Revision as of 20:13, 26 July 2015
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, Aldebaran
- M-type star (Red in color, includes red dwarf, red giant) – Proxima Centauri, 40 Eridani C, Betelgeuse