Obs. : 2013-09-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.065e+11
Venus      4.303e+11
Earth      3.991e+11
Mars       3.969e+11
Jupiter    4.048e+11
Saturn     4.376e+11
Uranus     3.975e+11
Neptune    3.990e+11
Pluto      4.163e+11