Obs. : 2025-06-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.809e+08
Venus      7.963e+08
Earth      8.197e+08
Mars       7.622e+08
Jupiter    7.712e+08
Saturn     7.994e+08
Uranus     7.807e+08
Neptune    7.994e+08
Pluto      8.078e+08