Obs. : 2023-01-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.518e+08
Venus      9.787e+08
Earth      9.753e+08
Mars       9.796e+08
Jupiter    9.710e+08
Saturn     9.787e+08
Uranus     9.700e+08
Neptune    9.823e+08
Pluto      9.687e+08