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spectral class

spectral class of an astronomical object

  • is an object of class
  • is a star of class

Data type

String

Statements

Constraints

[OBAFGKMLT]\d(\.\d)?(VII|V/VI|V|IV/V|IV|III/IV|III|II/III|II|Ib-II|Ib|Iab-b|Iab|Ia/ab|Ia|Ia-O/Ia|a-O)?e?p?n?m?s?
temperature class + luminosity class + precisions + peculiarities (English)
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