Obs. : 2020-01-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.283e+08
Venus      6.265e+08
Earth      6.171e+08
Mars       5.998e+08
Jupiter    6.183e+08
Saturn     6.183e+08
Uranus     6.093e+08
Neptune    6.241e+08
Pluto      6.183e+08