Obs. : 2023-12-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.016e+08
Venus      9.121e+08
Earth      8.232e+08
Mars       9.346e+08
Jupiter    7.888e+08
Saturn     7.952e+08
Uranus     8.096e+08
Neptune    7.841e+08
Pluto      8.762e+08