Obs. : 2024-05-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.697e+08
Venus      9.622e+08
Earth      9.956e+08
Mars       1.007e+09
Jupiter    9.622e+08
Saturn     1.031e+09
Uranus     9.622e+08
Neptune    1.031e+09
Pluto      1.065e+09