Obs. : 2012-09-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.150e+11
Venus      4.555e+11
Earth      4.687e+11
Mars       3.982e+11
Jupiter    4.653e+11
Saturn     3.869e+11
Uranus     4.672e+11
Neptune    4.733e+11
Pluto      4.372e+11