Obs. : 2012-05-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.436e+11
Venus      4.510e+11
Earth      4.501e+11
Mars       4.854e+11
Jupiter    4.436e+11
Saturn     4.851e+11
Uranus     4.423e+11
Neptune    4.287e+11
Pluto      4.452e+11