Obs. : 2013-10-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.764e+11
Venus      3.842e+11
Earth      3.936e+11
Mars       4.027e+11
Jupiter    4.024e+11
Saturn     3.764e+11
Uranus     3.973e+11
Neptune    4.022e+11
Pluto      3.892e+11