Obs. : 2026-05-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.871e+08
Venus      7.534e+08
Earth      7.245e+08
Mars       8.000e+08
Jupiter    7.225e+08
Saturn     8.083e+08
Uranus     7.597e+08
Neptune    8.083e+08
Pluto      7.492e+08