A Cyberinfrastructure platform to meet the needs of data intensive radio astronomy on route to the SKA

Is Shedir Variable?

  • university of birmingham, b15 2tt

Samuel George

Ian R. Stevens

Steven A. Spreckley




Year: 2009



Before the age of modern photographic and CCD observations alpha Cassiopeiae was labelled as a variable star, though this variability has not been seen with modern instrumentation. We present an analysis of 3 years of high precision space-based photometric measurements of the suspected variable star alpha Cassiopeiae, obtained by the broad band Solar Mass Ejection Imager (SMEI) instrument on board the Coriolis satellite. Over the 3 years of observations the star appears to not show any significant variability. Also, data from the Hipparcos epoch photometry annex shows no significant variability.