Obs. : 2019-02-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.403e+11
Venus      3.569e+11
Earth      3.465e+11
Mars       3.349e+11
Jupiter    3.528e+11
Saturn     3.569e+11
Uranus     3.349e+11
Neptune    3.368e+11
Pluto      3.575e+11