Obs. : 2009-09-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.412e+11
Venus      3.412e+11
Earth      3.501e+11
Mars       3.506e+11
Jupiter    3.496e+11
Saturn     3.377e+11
Uranus     3.499e+11
Neptune    3.484e+11
Pluto      3.545e+11