Circinus

Circinus
Circinus
List of stars in Circinus
Abbreviation: Cir
Genitive: Circini
Symbology: Compass
Right ascension: 15 h
Declination: −60°
Area: 93 sq. deg. (85th)
Main stars: 3
Bayer/Flamsteed stars: 8
Stars known to have planets: 0
Bright stars: 0
Nearby stars: 0
Brightest star: α Cir (3.2m)
Nearest star: α Cir (53.5 ly)
Messier objects: 0
Meteor showers: None
Bordering constellations: Centaurus
Musca
Apus
Triangulum Australe
Norma
Lupus
Visible at latitudes between +10° and −90°
Best visible at 21:00 (9 p.m.) during the month of June

Circinus ( Latin: compass), is one of the small southern (declination −50 to −60 degrees) constellations. It represents a tool used in drawing maps and as such should not be confused with Pyxis, a constellation associated with a ship's compass.

History

This constellation was designated in the 18th century, and first introduced by Nicolas Louis de Lacaille, whose unique fascination with secular science led to different names for these modern constellations. Since it is a creation of the 18th century, and was not visible to the cultures of the Mediterranean, there is no pre-18th century mythology associated with it.

At the International Constellation Conference in the summer of 2006, it was decided that this word is pronounced with hard c sounds, like in the word curtains.

References

* Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London. ISBN 978-0007251209. Princeton University Press, Princeton. ISBN 978-0691135564.

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The 88 modern constellations

Andromeda | Antlia | Apus | Aquarius | Aquila | Ara | Aries | Auriga | Boötes | Caelum | Camelopardalis | Cancer | Canes Venatici | Canis Major | Canis Minor | Capricornus | Carina | Cassiopeia | Centaurus | Cepheus | Cetus | Chamaeleon | Circinus | Columba | Coma Berenices | Corona Australis | Corona Borealis | Corvus | Crater | Crux | Cygnus | Delphinus | Dorado | Draco | Equuleus | Eridanus | Fornax | Gemini | Grus | Hercules | Horologium | Hydra | Hydrus | Indus | Lacerta | Leo | Leo Minor | Lepus | Libra | Lupus | Lynx | Lyra | Mensa | Microscopium | Monoceros | Musca | Norma | Octans | Ophiuchus | Orion | Pavo | Pegasus | Perseus | Phoenix | Pictor | Pisces | Piscis Austrinus | Puppis | Pyxis | Reticulum | Sagitta | Sagittarius | Scorpius | Sculptor | Scutum | Serpens | Sextans | Taurus | Telescopium | Triangulum | Triangulum Australe | Tucana | Ursa Major | Ursa Minor | Vela | Virgo | Volans | Vulpecula


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