Obs. : 2024-07-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.050e+09
Venus      1.050e+09
Earth      9.873e+08
Mars       9.727e+08
Jupiter    9.924e+08
Saturn     9.836e+08
Uranus     9.727e+08
Neptune    9.822e+08
Pluto      9.983e+08