Obs. : 2026-02-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.475e+08
Venus      7.475e+08
Earth      7.829e+08
Mars       7.511e+08
Jupiter    7.589e+08
Saturn     7.481e+08
Uranus     7.476e+08
Neptune    7.481e+08
Pluto      7.610e+08