Obs. : 2023-12-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.403e+08
Venus      8.311e+08
Earth      8.061e+08
Mars       8.650e+08
Jupiter    8.371e+08
Saturn     9.474e+08
Uranus     8.236e+08
Neptune    8.903e+08
Pluto      9.665e+08