Is Shedir Variable?
Abstract
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.
- Publication:
-
arXiv e-prints
- Pub Date:
- May 2009
- DOI:
- 10.48550/arXiv.0905.4223
- arXiv:
- arXiv:0905.4223
- Bibcode:
- 2009arXiv0905.4223G
- Keywords:
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- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 4 pages, 1 figure,