Obs. : 2023-11-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.734e+08
Venus      8.847e+08
Earth      9.757e+08
Mars       8.647e+08
Jupiter    9.757e+08
Saturn     9.112e+08
Uranus     9.757e+08
Neptune    9.327e+08
Pluto      8.893e+08