Obs. : 2020-08-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.439e+08
Venus      6.537e+08
Earth      6.549e+08
Mars       6.733e+08
Jupiter    6.565e+08
Saturn     6.578e+08
Uranus     6.682e+08
Neptune    6.665e+08
Pluto      6.565e+08