Obs. : 2012-05-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.554e+11
Venus      4.554e+11
Earth      4.241e+11
Mars       4.432e+11
Jupiter    4.579e+11
Saturn     4.264e+11
Uranus     4.512e+11
Neptune    4.324e+11
Pluto      4.227e+11