A good observation of the transit of exoplanet TrES-2b made last night under exceptional atmospheric conditions.
TrES-2b, or Kepler-1b, is an extrasolar planet orbiting the star GSC 03549-02811, 750 light-years away. Its mass and radius indicate that it is a gas giant with an overall composition similar to Jupiter. Unlike Jupiter, but like many other planets detected around other stars, TrES-2b is very close to its star and belongs to the class of planets known as hot Jupiters.
This exoplanet completes an orbit in just 2.5 Earth days.

