Obs. : 2026-04-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.596e+08
Venus      7.637e+08
Earth      7.041e+08
Mars       7.596e+08
Jupiter    7.200e+08
Saturn     7.596e+08
Uranus     7.549e+08
Neptune    7.596e+08
Pluto      7.048e+08