Quadrans Muralis (Latin for mural quadrant) was a constellation created by Jérôme Lalande in 1795. It was located between the constellations of Boötes and Draco, near the tail of Ursa Major. It is no longer in use, but the Quadrantid meteor shower is named after it.
- Michigan State University Astronomy Dept. Quadrans Muralis page
- Ian Ridpath site: Star Tales Quadrans Muralis
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