Obs. : 2023-06-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.094e+08
Venus      8.734e+08
Earth      9.795e+08
Mars       8.734e+08
Jupiter    9.131e+08
Saturn     8.909e+08
Uranus     9.094e+08
Neptune    8.910e+08
Pluto      9.215e+08