Obs. : 2013-07-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.185e+11
Venus      3.973e+11
Earth      3.903e+11
Mars       4.185e+11
Jupiter    4.185e+11
Saturn     4.033e+11
Uranus     4.163e+11
Neptune    3.961e+11
Pluto      3.903e+11