Obs. : 2026-07-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.867e+08
Venus      7.318e+08
Earth      7.189e+08
Mars       8.170e+08
Jupiter    7.499e+08
Saturn     7.753e+08
Uranus     8.186e+08
Neptune    7.540e+08
Pluto      6.969e+08