Obs. : 2026-01-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.274e+08
Venus      8.065e+08
Earth      7.759e+08
Mars       8.274e+08
Jupiter    7.502e+08
Saturn     7.200e+08
Uranus     7.238e+08
Neptune    7.200e+08
Pluto      8.065e+08