Obs. : 2025-02-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.489e+08
Venus      8.984e+08
Earth      9.002e+08
Mars       9.479e+08
Jupiter    9.504e+08
Saturn     8.702e+08
Uranus     9.431e+08
Neptune    8.702e+08
Pluto      8.677e+08