Obs. : 2025-11-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.267e+08
Venus      8.129e+08
Earth      8.646e+08
Mars       8.267e+08
Jupiter    8.387e+08
Saturn     8.585e+08
Uranus     8.673e+08
Neptune    8.585e+08
Pluto      8.396e+08