Obs. : 2018-10-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.403e+11
Venus      3.482e+11
Earth      3.476e+11
Mars       3.434e+11
Jupiter    3.403e+11
Saturn     3.398e+11
Uranus     3.468e+11
Neptune    3.461e+11
Pluto      3.407e+11