Obs. : 2018-12-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.509e+11
Venus      3.458e+11
Earth      3.547e+11
Mars       3.623e+11
Jupiter    3.509e+11
Saturn     3.631e+11
Uranus     3.563e+11
Neptune    3.638e+11
Pluto      3.631e+11