Obs. : 2023-11-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.262e+08
Venus      9.024e+08
Earth      8.643e+08
Mars       8.262e+08
Jupiter    8.742e+08
Saturn     8.320e+08
Uranus     8.774e+08
Neptune    8.461e+08
Pluto      8.206e+08