Obs. : 2025-02-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.384e+08
Venus      8.505e+08
Earth      8.486e+08
Mars       7.698e+08
Jupiter    7.995e+08
Saturn     8.474e+08
Uranus     8.326e+08
Neptune    8.505e+08
Pluto      8.197e+08