Obs. : 2025-12-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.452e+08
Venus      8.342e+08
Earth      7.684e+08
Mars       8.119e+08
Jupiter    7.684e+08
Saturn     7.193e+08
Uranus     7.478e+08
Neptune    7.177e+08
Pluto      7.691e+08