rrlyrae

• by revdan

  Pulsating star with periods ~1/2 day.

  Posted January 12, 2016 7:38 AM

• by revdan

  #heartbeatstar
  Two stars get very close together but avoid collision. Their structure changes, and the light curve exhibits a shape like a cadiogram.

  Posted January 12, 2016 7:42 AM

• by revdan

  #pulsating
  Rapid up and down changes in brightness on the order of a few hours

  Posted January 12, 2016 7:46 AM

• by revdan

  #Cepheid
  Pulsating star with periods >1 day

  Posted January 12, 2016 7:48 AM

• by revdan

  #cv-Cataclysmic variables (cv's) are a class of stars where the sudden ignition of material on the surface of a white dwarf results in gigantic increase in brightness for several days before returning to natural quiescent state.

  Posted January 12, 2016 7:53 AM