Obs. : 2016-01-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.214e+11
Venus      4.130e+11
Earth      4.064e+11
Mars       4.062e+11
Jupiter    4.044e+11
Saturn     4.071e+11
Uranus     4.203e+11
Neptune    4.340e+11
Pluto      4.214e+11