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Variations in Luminosity of Solar Type Star

Variations in Luminosity of Solar Type Star

Date: 03 May 2007
Satellite: CoRoT
Depicts: Plot of relative light variations
Copyright: CoRoT asteroseismological team

Relative light variations of a bright solar type star observed continuously during a 50 day period showing quite large unexpected variations on time scales of a few days, possibly related to magnetic activity.

The accuracy of the measurements is 5 × 10-5 per minute, which corresponds to the ultimate accuracy that can be achieved for the CoRoT telescope at the required integration times due to the quantum nature of light (which introduces Poisson noise that becomes a limiting factor for the brightest stars)

Last Update: 1 September 2019
15-Jul-2024 11:10 UT

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