Obs. : 2012-08-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.698e+11
Venus      4.132e+11
Earth      4.255e+11
Mars       3.982e+11
Jupiter    4.155e+11
Saturn     3.982e+11
Uranus     4.253e+11
Neptune    4.266e+11
Pluto      4.246e+11