Obs. : 2026-04-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.126e+08
Venus      7.016e+08
Earth      8.128e+08
Mars       7.126e+08
Jupiter    7.120e+08
Saturn     7.126e+08
Uranus     7.016e+08
Neptune    7.137e+08
Pluto      7.355e+08