The ornamental design for a starprojectorlamp, as shown and described.
FIG. 1 is a front, right, and top perspective view of a star projector lamp, showing my design.
FIG. 2 is a rear, left, and bottom perspective view thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a rear elevation view thereof.
FIG. 5 is a left side elevation thereof.
FIG. 6 is a right side elevation thereof.
FIG. 7 is a top plan view thereof.
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is a perspective view of the star projector lamp of FIG. 1 wherein the upper part of the star projector lamp is swiveling.
The broken lines shown in the drawings are included for the purpose of illustrating portions of the star projector lamp that form no part of the claimed design.