Obs. : 2015-09-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.425e+11
Venus      4.428e+11
Earth      4.126e+11
Mars       4.432e+11
Jupiter    4.423e+11
Saturn     4.333e+11
Uranus     4.121e+11
Neptune    4.119e+11
Pluto      4.272e+11