Obs. : 2023-05-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.195e+08
Venus      8.874e+08
Earth      8.918e+08
Mars       8.867e+08
Jupiter    9.195e+08
Saturn     9.206e+08
Uranus     9.045e+08
Neptune    9.415e+08
Pluto      8.869e+08