Obs. : 2025-02-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.196e+08
Venus      9.013e+08
Earth      9.400e+08
Mars       8.662e+08
Jupiter    8.267e+08
Saturn     9.145e+08
Uranus     8.414e+08
Neptune    9.013e+08
Pluto      9.065e+08