Obs. : 2017-07-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.649e+11
Venus      3.593e+11
Earth      3.594e+11
Mars       3.649e+11
Jupiter    3.646e+11
Saturn     3.594e+11
Uranus     3.534e+11
Neptune    3.505e+11
Pluto      3.568e+11