Obs. : 2010-05-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.781e+11
Venus      3.784e+11
Earth      3.653e+11
Mars       3.858e+11
Jupiter    3.737e+11
Saturn     3.807e+11
Uranus     3.737e+11
Neptune    3.628e+11
Pluto      3.621e+11