Obs. : 2013-06-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.233e+11
Venus      4.233e+11
Earth      4.225e+11
Mars       4.347e+11
Jupiter    4.260e+11
Saturn     4.285e+11
Uranus     4.424e+11
Neptune    4.269e+11
Pluto      4.210e+11