Obs. : 2026-08-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.815e+08
Venus      7.711e+08
Earth      6.639e+08
Mars       7.590e+08
Jupiter    7.983e+08
Saturn     6.864e+08
Uranus     7.448e+08
Neptune    6.864e+08
Pluto      6.642e+08