Obs. : 2020-08-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.282e+08
Venus      6.463e+08
Earth      6.445e+08
Mars       6.501e+08
Jupiter    6.451e+08
Saturn     6.451e+08
Uranus     6.520e+08
Neptune    6.456e+08
Pluto      6.451e+08