Obs. : 2025-02-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.651e+08
Venus      8.692e+08
Earth      8.873e+08
Mars       7.848e+08
Jupiter    7.939e+08
Saturn     8.702e+08
Uranus     8.307e+08
Neptune    8.692e+08
Pluto      8.527e+08