
1) Coin of ancient Rome 2) Constellation on equator 3) Constellation 4) Constellation, Sextant
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https://www.crosswordclues.com/clue/sextans

Sextans is a minor equatorial constellation which was introduced in 1687 by Johannes Hevelius. Its name is Latin for the astronomical sextant, an instrument that Hevelius made frequent use of in his observations. ==Notable features== Sextans as a constellation covers a rather dim, sparse region of the sky. It has only one star above the fifth magn...
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http://en.wikipedia.org/wiki/Sextans
[Chinese astronomy] According to traditional Chinese uranography, the modern constellation Sextans is located within the southern quadrant of the sky, which is symbolized as the The Vermillion Bird of the South (南方朱雀, Nán Fāng Zhū Què). The name of the western constellation in modern Chinese is 六分仪座 (liù fēn yí zuò),...
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http://en.wikipedia.org/wiki/Sextans_(Chinese_astronomy)
[coin] The sextans was an Ancient Roman bronze coin produced during the Roman Republic valued at one-sixth of an as (2 unciae). The most common design for the sextans was the bust of Mercury and two pellets (indicating two unciae) on the obverse and the prow of a galley on the reverse. Earlier types depicted a scallop shell, a caduceus, or ...
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http://en.wikipedia.org/wiki/Sextans_(coin)

• (n.) A constellation on the equator south of Leo; the Sextant. • (n.) A Roman coin, the sixth part of an as.
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http://thinkexist.com/dictionary/meaning/sextans/
(abbr. Sex, gen. Sextantis) The Sextant; a faint constellation on the celestial equator. Its brightest star is Alpha Sextantis (visual magnitude 4.48, absolute magnitude -0.25, spectral type A0III, distance 287 light-years). Among its deep-sky objects are the Sextans Dwarf and t...
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http://www.daviddarling.info/encyclopedia/S/Sex.html

English name: The Sextant. Genitive name: Sextantis. Visibility: Visible from the UK See TABLE 20: THE CONSTELLATIONS.
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http://www.encyclo.co.uk/local/20448
Sex'tans noun [ Latin See
Sextant .]
1. (Rom. Antiq.) A Roman coin, the sixth part of an as.
2. (Astron.) A constellation on the equator south of Leo; the Sextant.
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http://www.encyclo.co.uk/webster/S/78
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