Obs. : 2013-08-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.061e+11
Venus      4.030e+11
Earth      4.220e+11
Mars       4.266e+11
Jupiter    4.329e+11
Saturn     4.170e+11
Uranus     4.419e+11
Neptune    4.293e+11
Pluto      4.163e+11