Obs. : 2025-11-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.579e+08
Venus      9.840e+08
Earth      8.983e+08
Mars       8.579e+08
Jupiter    1.088e+09
Saturn     8.800e+08
Uranus     9.739e+08
Neptune    8.800e+08
Pluto      8.593e+08