Obs. : 2017-01-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    2.538e+11
Venus      2.505e+11
Earth      2.533e+11
Mars       2.505e+11
Jupiter    2.627e+11
Saturn     2.552e+11
Uranus     2.494e+11
Neptune    2.515e+11
Pluto      2.538e+11