Obs. : 2023-12-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.248e+08
Venus      9.288e+08
Earth      8.200e+08
Mars       8.896e+08
Jupiter    7.980e+08
Saturn     7.765e+08
Uranus     8.150e+08
Neptune    7.806e+08
Pluto      7.818e+08