Betelgeuse

Up to May 18, 2009

Recent lightcurve including Y. Ogane (VSNET) V photometry.

Lightcurve of the recent years including D. West and Y. Ogane (VSNET) V photometry:

Alpha Orionis , an SRc variable. A red supergiant undergoing pulsation with several cycles superposed.

Separation between maxima (not brightest peak but maximum from bisected chords method) =  JD 2452259  -(343 d)-  2452602  -(396 d)-  2452998  -(382 d)-  2453380  -(395 d)-  2453775  -(373 d)  2454148  -(387 d)  2454535

Periodogram of the recent years give a main period of  387 days.

Ir a Carta de alpha Ori  -  Volver a Curvas de variables  -  Ir a la página principal