Welcome

The XO Project is a photometric search for Jovian planets transiting very bright stars.

Ephemerides for Known Transiting Planets (caveat: the rate of discovery sometimes makes it hard to keep this up to date. Please pick a site near yours - predictions should be adequate for planning observation but should not be used for analysis as these ephemerides are not maintained accurately.)

XO-DR1 Data Release 1 of XO photometry from a representative field.

XO-1 XO Planet 1, announced in 2006.

XO-2 XO Planet 2, announced in 2007.

XO-3 XO Planet 3, announced in 2007.

Web log has not been maintained and probably is out of date.