Obs. : 2018-09-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.556e+11
Venus      3.575e+11
Earth      3.606e+11
Mars       3.588e+11
Jupiter    3.584e+11
Saturn     3.589e+11
Uranus     3.631e+11
Neptune    3.588e+11
Pluto      3.609e+11