Obs. : 2024-04-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.979e+08
Venus      9.720e+08
Earth      1.010e+09
Mars       1.037e+09
Jupiter    9.378e+08
Saturn     1.075e+09
Uranus     9.378e+08
Neptune    1.037e+09
Pluto      1.128e+09