Obs. : 2025-01-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.028e+09
Venus      1.001e+09
Earth      9.242e+08
Mars       9.369e+08
Jupiter    9.817e+08
Saturn     1.001e+09
Uranus     9.814e+08
Neptune    9.857e+08
Pluto      1.057e+09