Obs. : 2019-02-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.772e+11
Venus      3.840e+11
Earth      3.770e+11
Mars       3.697e+11
Jupiter    3.784e+11
Saturn     3.804e+11
Uranus     3.694e+11
Neptune    3.806e+11
Pluto      3.840e+11