Obs. : 2012-02-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.161e+11
Venus      4.095e+11
Earth      4.117e+11
Mars       4.069e+11
Jupiter    4.030e+11
Saturn     3.905e+11
Uranus     4.095e+11
Neptune    4.161e+11
Pluto      3.977e+11