Obs. : 2023-05-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.757e+08
Venus      8.699e+08
Earth      9.004e+08
Mars       8.820e+08
Jupiter    8.788e+08
Saturn     8.871e+08
Uranus     8.767e+08
Neptune    8.853e+08
Pluto      8.817e+08