41:3.9 [http://en.wikipedia.org/wiki/Variable_star Stellar variables] have numerous [[origins]]. In some [http://en.wikipedia.org/wiki/Double_Stars double stars] the [[tides]] caused by rapidly changing distances as the two [[bodies]] swing around their orbits also occasion periodic fluctuations of [[light]]. These [[gravity]] variations produce regular and recurrent flares, just as the capture of [http://en.wikipedia.org/wiki/Meteors meteors] by the [[accretion]] of [[energy]]-[[material]] at the [[surface]] would result in a comparatively sudden flash of [[light]] which would speedily recede to [[normal]] brightness for that [[sun]]. Sometimes a sun will capture a stream of [http://en.wikipedia.org/wiki/Meteors meteors] in a line of lessened [[gravity]] [[opposition]], and occasionally collisions [[cause]] stellar flare-ups, but the [[majority]] of such [[phenomena]] are wholly due to internal fluctuations. | 41:3.9 [http://en.wikipedia.org/wiki/Variable_star Stellar variables] have numerous [[origins]]. In some [http://en.wikipedia.org/wiki/Double_Stars double stars] the [[tides]] caused by rapidly changing distances as the two [[bodies]] swing around their orbits also occasion periodic fluctuations of [[light]]. These [[gravity]] variations produce regular and recurrent flares, just as the capture of [http://en.wikipedia.org/wiki/Meteors meteors] by the [[accretion]] of [[energy]]-[[material]] at the [[surface]] would result in a comparatively sudden flash of [[light]] which would speedily recede to [[normal]] brightness for that [[sun]]. Sometimes a sun will capture a stream of [http://en.wikipedia.org/wiki/Meteors meteors] in a line of lessened [[gravity]] [[opposition]], and occasionally collisions [[cause]] stellar flare-ups, but the [[majority]] of such [[phenomena]] are wholly due to internal fluctuations. |