Obs. : 2008-06-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.555e+11
Venus      3.555e+11
Earth      3.444e+11
Mars       3.665e+11
Jupiter    3.419e+11
Saturn     3.681e+11
Uranus     3.426e+11
Neptune    3.391e+11
Pluto      3.468e+11