Obs. : 2020-12-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.892e+08
Venus      6.881e+08
Earth      7.308e+08
Mars       7.247e+08
Jupiter    7.026e+08
Saturn     7.026e+08
Uranus     7.276e+08
Neptune    7.120e+08
Pluto      6.967e+08