Obs. : 2017-12-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.676e+11
Venus      3.676e+11
Earth      3.706e+11
Mars       3.718e+11
Jupiter    3.718e+11
Saturn     3.676e+11
Uranus     3.653e+11
Neptune    3.639e+11
Pluto      3.653e+11