Obs. : 2009-12-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.732e+11
Venus      3.591e+11
Earth      3.494e+11
Mars       3.436e+11
Jupiter    3.689e+11
Saturn     3.394e+11
Uranus     3.639e+11
Neptune    3.689e+11
Pluto      3.652e+11