Obs. : 2018-10-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.727e+11
Venus      3.822e+11
Earth      3.842e+11
Mars       3.779e+11
Jupiter    3.727e+11
Saturn     3.717e+11
Uranus     3.822e+11
Neptune    3.803e+11
Pluto      3.737e+11