Obs. : 2016-01-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.989e+11
Venus      4.051e+11
Earth      3.940e+11
Mars       4.027e+11
Jupiter    4.030e+11
Saturn     4.051e+11
Uranus     3.895e+11
Neptune    3.902e+11
Pluto      3.989e+11