Obs. : 2023-11-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.189e+08
Venus      8.580e+08
Earth      7.873e+08
Mars       9.162e+08
Jupiter    7.873e+08
Saturn     8.600e+08
Uranus     7.896e+08
Neptune    8.400e+08
Pluto      9.094e+08