Obs. : 2025-02-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.006e+09
Venus      9.332e+08
Earth      9.251e+08
Mars       9.829e+08
Jupiter    9.815e+08
Saturn     9.332e+08
Uranus     9.601e+08
Neptune    9.332e+08
Pluto      1.006e+09