Obs. : 2018-06-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.526e+11
Venus      3.545e+11
Earth      3.575e+11
Mars       3.449e+11
Jupiter    3.587e+11
Saturn     3.495e+11
Uranus     3.456e+11
Neptune    3.428e+11
Pluto      3.495e+11