Obs. : 2025-03-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.189e+08
Venus      9.189e+08
Earth      9.029e+08
Mars       8.814e+08
Jupiter    8.906e+08
Saturn     9.139e+08
Uranus     8.984e+08
Neptune    9.189e+08
Pluto      9.201e+08