Obs. : 2012-06-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.159e+11
Venus      4.364e+11
Earth      4.380e+11
Mars       4.006e+11
Jupiter    4.364e+11
Saturn     4.015e+11
Uranus     4.537e+11
Neptune    4.464e+11
Pluto      4.343e+11