HATNet is a network of almost identical, completely automated, small aperture
and wide-field CCD-equipped telescopes installed at F. L. Whipple Observatory
in Arizona and at Mauna Kea Observatory in Hawaii. HATNet is used to search
for exoplanets around bright stars.
The Trans-atlantic Exoplanet Survey (TrES) uses small-aperture,
automated observatories stationed at Palomar Observatory in
California, Lowell Observatory in Arizona, and on Tenerife
in the Canary Islands, to detect exoplanets that pass in front
of their parents stars.