Obs. : 2009-07-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.463e+11
Venus      3.472e+11
Earth      3.440e+11
Mars       3.496e+11
Jupiter    3.406e+11
Saturn     3.629e+11
Uranus     3.391e+11
Neptune    3.406e+11
Pluto      3.500e+11