Obs. : 2018-10-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.060e+11
Venus      3.068e+11
Earth      3.153e+11
Mars       3.131e+11
Jupiter    3.077e+11
Saturn     3.122e+11
Uranus     3.146e+11
Neptune    3.127e+11
Pluto      3.137e+11