Obs. : 2010-12-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.798e+11
Venus      3.802e+11
Earth      3.815e+11
Mars       3.839e+11
Jupiter    3.751e+11
Saturn     3.792e+11
Uranus     3.751e+11
Neptune    3.763e+11
Pluto      3.839e+11