Obs. : 2012-02-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.145e+11
Venus      4.143e+11
Earth      4.059e+11
Mars       4.037e+11
Jupiter    4.043e+11
Saturn     3.948e+11
Uranus     4.143e+11
Neptune    4.145e+11
Pluto      3.915e+11