Obs. : 2010-08-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.700e+11
Venus      3.070e+11
Earth      3.640e+11
Mars       3.281e+11
Jupiter    3.650e+11
Saturn     3.281e+11
Uranus     3.650e+11
Neptune    3.781e+11
Pluto      2.982e+11