Obs. : 2010-08-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.626e+11
Venus      3.707e+11
Earth      3.828e+11
Mars       3.707e+11
Jupiter    3.758e+11
Saturn     3.707e+11
Uranus     3.779e+11
Neptune    3.799e+11
Pluto      3.800e+11