Obs. : 2014-02-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.321e+11
Venus      4.098e+11
Earth      4.170e+11
Mars       4.094e+11
Jupiter    4.208e+11
Saturn     4.068e+11
Uranus     4.602e+11
Neptune    4.591e+11
Pluto      4.083e+11