Obs. : 2026-04-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.822e+08
Venus      7.628e+08
Earth      7.016e+08
Mars       7.822e+08
Jupiter    7.145e+08
Saturn     7.822e+08
Uranus     7.525e+08
Neptune    7.822e+08
Pluto      7.147e+08