Obs. : 2024-04-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.022e+09
Venus      9.855e+08
Earth      8.150e+08
Mars       1.042e+09
Jupiter    9.266e+08
Saturn     1.050e+09
Uranus     9.266e+08
Neptune    1.042e+09
Pluto      9.231e+08