Obs. : 2014-07-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.519e+11
Venus      4.519e+11
Earth      3.526e+11
Mars       3.593e+11
Jupiter    4.556e+11
Saturn     3.566e+11
Uranus     4.036e+11
Neptune    3.684e+11
Pluto      3.498e+11