Obs. : 2010-06-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.849e+11
Venus      3.860e+11
Earth      3.693e+11
Mars       3.935e+11
Jupiter    3.607e+11
Saturn     3.904e+11
Uranus     3.607e+11
Neptune    3.589e+11
Pluto      3.721e+11