Obs. : 2009-06-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.546e+11
Venus      3.469e+11
Earth      3.556e+11
Mars       3.533e+11
Jupiter    3.456e+11
Saturn     3.664e+11
Uranus     3.418e+11
Neptune    3.456e+11
Pluto      3.577e+11