Obs. : 2010-02-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.841e+11
Venus      3.795e+11
Earth      3.784e+11
Mars       3.798e+11
Jupiter    3.795e+11
Saturn     3.853e+11
Uranus     3.780e+11
Neptune    3.817e+11
Pluto      3.848e+11