Obs. : 2018-09-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.523e+11
Venus      3.519e+11
Earth      3.599e+11
Mars       3.543e+11
Jupiter    3.541e+11
Saturn     3.551e+11
Uranus     3.601e+11
Neptune    3.552e+11
Pluto      3.562e+11