That reads to me as a F#m with an augmented 5th. The notes of a simple tonic triad of D would be D F# A. Meanwhile an F#m would be F# A C#. If you augment that C# to a D and take the second inversion of the chord then you again get D F# A.
The actual reason you would write it like this would really depend on what you are doing musically in the piece more widely. If you were going F#m -> Bm through D as a passing chord, you could consider it as an F#m aug5, however this kinda would make more sense if the other parts of the piece implied that chord to be an F# chord.
In general don't worry about it too much as often you don't really mean the alternative representations that it suggests, but there is some fun music theory underlying this.
That would be a 22° halo, a fairly uncommon atmospheric phenomenon where light refracts through hexagonal ice crystals in the atmosphere resulting in an average deviation from the angle it comes in at by around (funnily enough) 22°.
There are lots of other interesting atmospheric phenomena including sundogs, moonbows, and the much rarer 46° halo!