Obs. : 2026-07-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.390e+08
Venus      8.736e+08
Earth      7.179e+08
Mars       7.877e+08
Jupiter    8.590e+08
Saturn     7.453e+08
Uranus     7.877e+08
Neptune    7.453e+08
Pluto      7.179e+08