Obs. : 2018-10-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.266e+11
Venus      3.260e+11
Earth      3.330e+11
Mars       3.288e+11
Jupiter    3.260e+11
Saturn     3.298e+11
Uranus     3.330e+11
Neptune    3.290e+11
Pluto      3.300e+11