Obs. : 2023-12-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.223e+08
Venus      9.288e+08
Earth      9.602e+08
Mars       9.223e+08
Jupiter    1.008e+09
Saturn     9.142e+08
Uranus     9.980e+08
Neptune    9.613e+08
Pluto      9.202e+08