Obs. : 2026-01-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.396e+08
Venus      8.560e+08
Earth      8.119e+08
Mars       8.560e+08
Jupiter    8.316e+08
Saturn     9.050e+08
Uranus     9.045e+08
Neptune    9.050e+08
Pluto      8.709e+08