Is the Lizard hiding another Earth?

If the sky is clear tonight, look up high and try to find Lacerta (the constellation of the Lizard), between Cygnus and Cassiopeia. How many stars can we see, and could any of them be hiding habitable planets?

More information at:

http://www.esa.int/export/esaSC/SEMVQJXO4HD_exploring_0.html