Obs. : 2013-08-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.555e+11
Venus      3.601e+11
Earth      3.932e+11
Mars       3.637e+11
Jupiter    3.637e+11
Saturn     3.758e+11
Uranus     3.730e+11
Neptune    3.860e+11
Pluto      3.949e+11