Obs. : 2018-11-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.519e+11
Venus      3.471e+11
Earth      3.520e+11
Mars       3.530e+11
Jupiter    3.519e+11
Saturn     3.527e+11
Uranus     3.521e+11
Neptune    3.530e+11
Pluto      3.530e+11