Obs. : 2018-12-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.483e+11
Venus      3.471e+11
Earth      3.541e+11
Mars       3.575e+11
Jupiter    3.525e+11
Saturn     3.577e+11
Uranus     3.508e+11
Neptune    3.575e+11
Pluto      3.596e+11