Obs. : 2023-02-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.319e+08
Venus      8.851e+08
Earth      8.855e+08
Mars       8.415e+08
Jupiter    8.851e+08
Saturn     9.310e+08
Uranus     8.561e+08
Neptune    9.082e+08
Pluto      9.321e+08