Obs. : 2012-06-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.674e+11
Venus      4.646e+11
Earth      4.238e+11
Mars       4.806e+11
Jupiter    4.646e+11
Saturn     4.700e+11
Uranus     4.342e+11
Neptune    4.137e+11
Pluto      4.238e+11