Obs. : 2020-09-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.129e+08
Venus      6.513e+08
Earth      6.338e+08
Mars       6.338e+08
Jupiter    6.168e+08
Saturn     6.168e+08
Uranus     6.410e+08
Neptune    6.196e+08
Pluto      6.168e+08