Obs. : 2019-11-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.216e+08
Venus      6.293e+08
Earth      6.233e+08
Mars       6.216e+08
Jupiter    6.293e+08
Saturn     6.348e+08
Uranus     6.233e+08
Neptune    6.274e+08
Pluto      6.348e+08