Obs. : 2008-06-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.429e+11
Venus      3.397e+11
Earth      3.439e+11
Mars       3.426e+11
Jupiter    3.439e+11
Saturn     3.426e+11
Uranus     3.434e+11
Neptune    3.434e+11
Pluto      3.453e+11