Obs. : 2020-11-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.403e+08
Venus      6.434e+08
Earth      6.515e+08
Mars       6.514e+08
Jupiter    6.716e+08
Saturn     6.696e+08
Uranus     6.515e+08
Neptune    6.578e+08
Pluto      6.716e+08