Obs. : 2010-10-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.560e+11
Venus      3.560e+11
Earth      3.799e+11
Mars       3.634e+11
Jupiter    3.778e+11
Saturn     3.497e+11
Uranus     3.799e+11
Neptune    3.793e+11
Pluto      3.803e+11