Bitttymacod
Third possibility, Atys orbits a star but is tidally locked and we are not on the side facing the star.
The only way we would never see any trace of the star is if we were tidally locked to the star itself. A moon or asteroid that is tidally locked to a planet will still complete exactly one rotation per one revolution of its planet- The dark side of earth's moon gets the same amount of light as the light side, except it is a new moon when the far side is getting direct sunlight.
Bitttymacod
We might even be in a Trojan position defined by the ringed object and the star.
Yes, I think the L1 point is a likely place for Atys. Otherwise, since we appear to be so close to a larger ringed planet I would expect atys to be captured as a satellite, collide with the planet, or be otherwise flung from the larger planet's path :( Based on the current sky animation, there is no evidence that we orbit the ringed planet- and that planet's appearance near our magnetic north pole could just be coincidence, rather than tidal locking (which I don't think occurs with trojans since they are at a point where the planet's and star's gravity negate each other).