Obs. : 2017-01-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    2.869e+11
Venus      2.907e+11
Earth      3.031e+11
Mars       2.907e+11
Jupiter    2.975e+11
Saturn     2.883e+11
Uranus     2.918e+11
Neptune    2.896e+11
Pluto      2.869e+11