Device for depicting constellations on a ceiling

Details Device for depicting constellations on a ceiling Device for depicting constellations on a ceiling

1986-05-27

1988-02-23

Murtaugh, John E.

Education and demonstration

Science

Astronomy

434285, 40583, G09B 2704

Patent

active

047267739

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.

REFERENCES:
patent: 833433 (1906-10-01), Wyman
patent: 2554408 (1951-05-01), Hile
patent: 2866704 (1958-12-01), Korkosz
patent: 3037300 (1962-06-01), Grosser
patent: 3251143 (1966-05-01), Eisenhauer
patent: 3934366 (1976-01-01), Reiser
patent: 4271604 (1981-06-01), Rowsey, Jr.
patent: 4568287 (1986-02-01), Wederski

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