Obs. : 2016-10-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.068e+11
Venus      3.928e+11
Earth      3.750e+11
Mars       3.929e+11
Jupiter    4.099e+11
Saturn     3.928e+11
Uranus     3.808e+11
Neptune    3.889e+11
Pluto      3.929e+11