Obs. : 2017-05-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.827e+11
Venus      3.805e+11
Earth      3.636e+11
Mars       3.829e+11
Jupiter    3.574e+11
Saturn     3.648e+11
Uranus     3.827e+11
Neptune    3.733e+11
Pluto      3.676e+11