Obs. : 2009-07-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.455e+11
Venus      3.481e+11
Earth      3.509e+11
Mars       3.457e+11
Jupiter    3.487e+11
Saturn     3.620e+11
Uranus     3.451e+11
Neptune    3.487e+11
Pluto      3.580e+11