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- Irregular_variable abstract "An irregular variable is a type of variable star in which variations in brightness show no regular periodicity. There are two main sub-types of irregular variable: eruptive and pulsating.Eruptive irregular variables are divided into three categories: Group I variables are split into subgroups IA (spectral types O to A) and IB (spectral types F through M). Orion variables, GCVS type IN (irregular and nebulous), indigenous to star-forming regions, may vary by several magnitudes with rapid changes of up to 1 magnitude in 1 to 10 days, are similarly divided by spectral type into subgroups INA and INB, but with the addition of another subgroup, INT, for T Tauri stars, or INT(YY) for YY Orionis stars. The third category of eruptive irregulars are the IS stars, which show rapid variations of 0.5 to 1 magnitude in a few hours or days; again, these come in subgroups ISA and ISB.Pulsating irregular giants or supergiants, called slow irregular variables, are all of late spectral types (K, M, C, or S), and classed as type L-LB for giants and LC for supergiants. How many of these are actually semi-regular variables that simply need more study, remains unclear.".
- Irregular_variable wikiPageID "1121766".
- Irregular_variable wikiPageRevisionID "540452656".
- Irregular_variable hasPhotoCollection Irregular_variable.
- Irregular_variable subject Category:Irregular_variables.
- Irregular_variable type IrregularVariables.
- Irregular_variable type PhysicalEntity100001930.
- Irregular_variable type Thing100002452.
- Irregular_variable type Variable109468959.
- Irregular_variable comment "An irregular variable is a type of variable star in which variations in brightness show no regular periodicity. There are two main sub-types of irregular variable: eruptive and pulsating.Eruptive irregular variables are divided into three categories: Group I variables are split into subgroups IA (spectral types O to A) and IB (spectral types F through M).".
- Irregular_variable label "Estrella variable irregular".
- Irregular_variable label "Gwiazda zmienna nieregularna".
- Irregular_variable label "Irregular variable".
- Irregular_variable label "Langsam unregelmäßig veränderlicher Stern".
- Irregular_variable label "Variabile irregolare".
- Irregular_variable label "Variable irrégulière".
- Irregular_variable label "Неправильная переменная звезда".
- Irregular_variable label "不規則變星".
- Irregular_variable sameAs Langsam_unregelmäßig_veränderlicher_Stern.
- Irregular_variable sameAs Estrella_variable_irregular.
- Irregular_variable sameAs Izar_aldagarri_irregular.
- Irregular_variable sameAs Variable_irrégulière.
- Irregular_variable sameAs Variabile_irregolare.
- Irregular_variable sameAs 불규칙_변광성.
- Irregular_variable sameAs Gwiazda_zmienna_nieregularna.
- Irregular_variable sameAs m.047y77.
- Irregular_variable sameAs Q1141054.
- Irregular_variable sameAs Q1141054.
- Irregular_variable sameAs Irregular_variable.
- Irregular_variable wasDerivedFrom Irregular_variable?oldid=540452656.
- Irregular_variable isPrimaryTopicOf Irregular_variable.