Obs. : 2008-12-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.513e+11
Venus      3.530e+11
Earth      3.490e+11
Mars       3.456e+11
Jupiter    3.513e+11
Saturn     3.428e+11
Uranus     3.502e+11
Neptune    3.530e+11
Pluto      3.456e+11