Obs. : 2018-07-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.433e+11
Venus      3.449e+11
Earth      3.442e+11
Mars       3.432e+11
Jupiter    3.498e+11
Saturn     3.442e+11
Uranus     3.451e+11
Neptune    3.394e+11
Pluto      3.428e+11