Obs. : 2020-02-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.270e+08
Venus      6.014e+08
Earth      6.106e+08
Mars       6.178e+08
Jupiter    6.245e+08
Saturn     6.220e+08
Uranus     5.940e+08
Neptune    6.209e+08
Pluto      6.220e+08