Obs. : 2015-10-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.188e+11
Venus      4.265e+11
Earth      4.839e+11
Mars       4.210e+11
Jupiter    4.210e+11
Saturn     4.221e+11
Uranus     4.890e+11
Neptune    4.800e+11
Pluto      4.423e+11