Obs. : 2026-05-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.718e+08
Venus      7.733e+08
Earth      6.969e+08
Mars       7.449e+08
Jupiter    7.779e+08
Saturn     7.112e+08
Uranus     7.718e+08
Neptune    7.112e+08
Pluto      6.703e+08