Obs. : 2017-01-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    2.547e+11
Venus      2.506e+11
Earth      2.566e+11
Mars       2.506e+11
Jupiter    2.631e+11
Saturn     2.564e+11
Uranus     2.494e+11
Neptune    2.519e+11
Pluto      2.547e+11