Obs. : 2019-01-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.537e+11
Venus      3.529e+11
Earth      3.582e+11
Mars       3.625e+11
Jupiter    3.537e+11
Saturn     3.565e+11
Uranus     3.577e+11
Neptune    3.626e+11
Pluto      3.613e+11