Obs. : 2013-09-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.762e+11
Venus      3.745e+11
Earth      3.954e+11
Mars       3.874e+11
Jupiter    3.850e+11
Saturn     3.818e+11
Uranus     3.824e+11
Neptune    3.886e+11
Pluto      3.994e+11