Obs. : 2023-01-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.865e+08
Venus      9.904e+08
Earth      9.783e+08
Mars       1.036e+09
Jupiter    9.897e+08
Saturn     9.904e+08
Uranus     1.015e+09
Neptune    9.909e+08
Pluto      9.965e+08