Obs. : 2018-06-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.640e+11
Venus      3.643e+11
Earth      3.705e+11
Mars       3.648e+11
Jupiter    3.720e+11
Saturn     3.666e+11
Uranus     3.662e+11
Neptune    3.622e+11
Pluto      3.656e+11