Obs. : 2010-10-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.769e+11
Venus      3.888e+11
Earth      3.629e+11
Mars       3.888e+11
Jupiter    3.629e+11
Saturn     3.769e+11
Uranus     3.629e+11
Neptune    3.669e+11
Pluto      3.847e+11