Obs. : 2013-06-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.251e+11
Venus      4.251e+11
Earth      4.444e+11
Mars       4.305e+11
Jupiter    4.260e+11
Saturn     4.661e+11
Uranus     4.330e+11
Neptune    4.304e+11
Pluto      4.444e+11