Abstract: Constellations are depicted on a ceiling with phosphorescent indicators of a predetermined planar surface area, which indicators are proportionally related to each other by a constant multiplication factor, to depict various star brightness magnitudes. A template has apertures with predetermined shapes, such that each aperture permits the affixing therein of only one indicator of a specific surface area against a ceiling. When all apertures are filled with indicators, the template is removed leaving a depiction of the constellations on the ceiling.