Obs. : 2017-11-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.650e+11
Venus      3.587e+11
Earth      3.758e+11
Mars       3.543e+11
Jupiter    3.544e+11
Saturn     3.650e+11
Uranus     3.709e+11
Neptune    3.714e+11
Pluto      3.675e+11