Key Topics

1. Measurements of solar irradiance variability.


2. Stellar variability on rotational time scales; Kepler and Corot measurements.


3. Stellar variability on activity cycle time scales; ground based observations.


4. Physical mechanisms and models of solar and stellar brightness variability.


5. The photometric signature of magnetic activity: darker or brighter?


6. Is the Sun a solar-type variable?


7. Constraining dynamo models using solar and stellar variability records.


8. Influence of solar and stellar variability on Earth and other planets.


9. Stellar variability as a limiting factor for detectability of extra-solar planets.