The ornamental design for a star, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a bottom perspective view of a star showing my new design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a right side view thereof, with the left side being a mirror image; and,
FIG. 5 is a front view thereof, with the back view being a mirror image.