Obs. : 2011-07-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.155e+11
Venus      4.106e+11
Earth      3.976e+11
Mars       4.069e+11
Jupiter    4.026e+11
Saturn     4.206e+11
Uranus     3.946e+11
Neptune    3.927e+11
Pluto      4.004e+11