Abstract: In a window frame assembly having hollow frame members, a joint interconnecting the ends of two adjacent frame members is described. The joint includes a rabbeted miter cut and an anti rack and twist component. These features act synergistically to align and firmly joint adjacent frame members.

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.