Class: RapidIrregularVariableStar

Variable Star with rapid variations

•owl:Thing
        •AstrObject
                •VariableObject
                        •EruptiveVariableStar
                                •RapidIrregularVariableStar
                        •IrregularVariableStar
                                •RapidIrregularVariableStar

Super Classes

IrregularVariableStar
EruptiveVariableStar

Annotations

misc:descriptionRapid irregular variables (class: eruptive) having no apparent connection with diffuse nebulae and showing light changes of about 0.5 - 1.0 mag within several hours or days. There is no strict boundary between rapid irregular and Orion variables. If a rapid irregular star is observed in the region of a diffuse nebula, it is considered an Orion variable. To attribute a variable to this type (R.I.), it is necessary to take much care to be certain that its light changes are really not periodic. Sub-types: - Rapid irregular variables of the early spectral types, B-A or Ae; - Rapid irregular variables of the intermediate and late spectral types, F-M and Fe-Me.
simbad:nameRapid_Irreg_V*
simbad:shortCodeRI*
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