Obs. : 2025-08-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.012e+08
Venus      8.255e+08
Earth      9.013e+08
Mars       8.016e+08
Jupiter    8.567e+08
Saturn     9.159e+08
Uranus     9.167e+08
Neptune    9.159e+08
Pluto      8.139e+08