Obs. : 2009-11-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.585e+11
Venus      3.488e+11
Earth      3.662e+11
Mars       3.598e+11
Jupiter    3.672e+11
Saturn     3.535e+11
Uranus     3.742e+11
Neptune    3.672e+11
Pluto      3.633e+11