Obs. : 2010-12-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.742e+11
Venus      3.761e+11
Earth      3.796e+11
Mars       3.742e+11
Jupiter    3.753e+11
Saturn     3.751e+11
Uranus     3.730e+11
Neptune    3.765e+11
Pluto      3.742e+11