This image from NASA's Kepler mission shows the telescope's full field of view -- an expansive star-rich patch of sky in the constellations Cygnus, Lyra and Draco stretching across 100 square degrees, or the equivalent of two side-by-side dips of the Big Dipper.
<p>A cluster of stars, called NGC 6791, and a star with a known planet, called TrES-2b, are outlined. The cluster is eight billion years old, and located 13,000 light-years from Earth. It is called an open cluster because its stars are loosely bound and have started to spread out. TrES-2b is a hot Jupiter-like planet known to cross in front of, or transit, its star every 2.5 days. Kepler will hunt for transiting planets that are as small as Earth.
</p>
Celestial north is towards the lower left corner.
NASA/Ames/JPL-Caltech
04/09/2009
<a rel="nofollow" class="external free" href="http://www.nasa.gov/mission_pages/kepler/multimedia/images/fullFFIHot300.html">http://www.nasa.gov/mission_pages/kepler/multimedia/images/fullFFIHot300.html</a>