Obs. : 2023-09-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.975e+08
Venus      8.980e+08
Earth      9.227e+08
Mars       8.977e+08
Jupiter    9.460e+08
Saturn     9.144e+08
Uranus     9.460e+08
Neptune    9.227e+08
Pluto      9.010e+08