page_title: Quadrans Muralis
section_title: Notable features
hierarchical_section_title: Quadrans Muralis / Notable features
caption_attribution_description: English: "Bootes, Canes Venatici, Coma Berenices, and Quadrans Muralis", plate 10 in Urania's Mirror, a set of celestial cards accompanied by A familiar treatise on astronomy ... by Jehoshaphat Aspin. London. Astronomical chart, 1 print on layered paper board&#160;: etching, hand-colored. Instructions for proper viewing: While looking at image, hit up and down arrows on your keyboard in rapid succession. Shake, shake, shake. Shake, shake, shake. Shake your Boötes. Shake your Boötes.
context_page_description: Quadrans Muralis was a constellation created by the French astronomer Jérôme Lalande in 1795. It depicted a wall-mounted quadrant with which he and his nephew Michel Lefrançois de Lalande had charted the celestial sphere, and was named Le Mural in the French atlas. It was between the constellations of Boötes and Draco, near the tail of Ursa Major, containing stars between β Bootis and η Ursae Majoris.
  Johann Elert Bode converted its name to Latin as Quadrans Muralis and shrank the constellation a little in his 1801 Uranographia star atlas, to avoid it clashing with neighboring constellations.
  In 1922, Quadrans Muralis was omitted when the International Astronomical Union formalised its list of officially recognized constellations.
context_section_description: The variable star BP Boötis was a member of the constellation.
  39 Boötis is a double star that was transferred by Lalande into Quadrans.
  The Quadrantid meteor shower is still named after the obsolete constellation.
caption: Quadrans Muralis can be seen at the top left of this 1825 star chart from Urania's Mirror.
exif: {}