Obs. : 2010-09-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.736e+11
Venus      3.743e+11
Earth      3.695e+11
Mars       3.743e+11
Jupiter    3.652e+11
Saturn     3.759e+11
Uranus     3.652e+11
Neptune    3.695e+11
Pluto      3.770e+11