Obs. : 2025-07-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.957e+08
Venus      7.945e+08
Earth      7.884e+08
Mars       7.953e+08
Jupiter    7.900e+08
Saturn     8.035e+08
Uranus     7.965e+08
Neptune    8.035e+08
Pluto      7.841e+08