Obs. : 2018-12-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.647e+11
Venus      3.608e+11
Earth      3.730e+11
Mars       3.786e+11
Jupiter    3.647e+11
Saturn     3.805e+11
Uranus     3.722e+11
Neptune    3.819e+11
Pluto      3.819e+11