Obs. : 2012-09-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.499e+11
Venus      4.670e+11
Earth      4.139e+11
Mars       4.019e+11
Jupiter    4.614e+11
Saturn     4.099e+11
Uranus     4.350e+11
Neptune    4.139e+11
Pluto      3.950e+11