Obs. : 2013-11-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.151e+11
Venus      4.338e+11
Earth      4.048e+11
Mars       4.056e+11
Jupiter    3.948e+11
Saturn     4.153e+11
Uranus     4.406e+11
Neptune    4.485e+11
Pluto      4.304e+11