Lover's Light is a constellation that is said to only be visible to those who share true and pure love between each other.
On some planets, going out to try and find a view of it is part of the courting process or marriage ceremonies.
Of course, as a constellation it never actually moves, it just happens to only be viewable from certain locations on these planets.
The trick is that the Master of Ceremonies knows which places the stars can be viewed from and will direct couples that receive their blessing to the correct locations to search.
On some of the planets, however, while the belief still persists, the fact that anyone can view it from these locations is proof that all love is true in it's own way.