Obs. : 2016-12-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.635e+11
Venus      3.615e+11
Earth      3.502e+11
Mars       3.593e+11
Jupiter    3.514e+11
Saturn     3.590e+11
Uranus     3.531e+11
Neptune    3.562e+11
Pluto      3.635e+11