Obs. : 2026-04-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.188e+08
Venus      7.086e+08
Earth      8.176e+08
Mars       7.188e+08
Jupiter    7.127e+08
Saturn     7.188e+08
Uranus     7.086e+08
Neptune    7.190e+08
Pluto      7.498e+08