Obs. : 2015-09-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.256e+11
Venus      4.260e+11
Earth      4.244e+11
Mars       4.255e+11
Jupiter    4.255e+11
Saturn     4.221e+11
Uranus     4.221e+11
Neptune    4.266e+11
Pluto      4.230e+11