Obs. : 2017-01-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    2.655e+11
Venus      2.636e+11
Earth      2.730e+11
Mars       2.636e+11
Jupiter    2.759e+11
Saturn     2.686e+11
Uranus     2.634e+11
Neptune    2.637e+11
Pluto      2.655e+11