Obs. : 2020-03-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.392e+08
Venus      6.032e+08
Earth      6.204e+08
Mars       6.274e+08
Jupiter    6.274e+08
Saturn     6.274e+08
Uranus     6.145e+08
Neptune    6.419e+08
Pluto      6.274e+08