"Planetary transits" refers to the movement of planets across the face of the Sun, as seen from Earth. It occurs when a planet passes directly between the Sun and Earth, creating a momentary alignment. Full definition
Related sites OGLE home page, with details of planetary transit Compendium of all extrasolar planets to date Kepler, a future NASA satellite devoted to transit searches (sciencemag.org)
Borucki was convinced that looking for planetary transits through photometry would be simpler and cheaper. (discovermagazine.com)
Astronomers have been trying to observe planetary transit eclipses across a tight binary of red dwarf stars in the CM Draconis system. (solstation.com)