Obs. : 2013-03-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.316e+11
Venus      4.245e+11
Earth      3.946e+11
Mars       4.054e+11
Jupiter    3.935e+11
Saturn     4.164e+11
Uranus     4.054e+11
Neptune    4.316e+11
Pluto      4.473e+11