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Horologium constellation: showing the tangent line, or viewer's horizon, at latitude approx 23°N, which is parallel to the line of −67.04 declension, the lower declination boundary of the constellation. Covering a total of 248.9 square degrees or 0.603% of the sky, Horologium ranks 58th in area out of the 88 modern constellations. [7]
Nu Horologii, Latinized from ν Horologii, is the Bayer designation for a single [11] star in the southern constellation of Horologium. It was catalogued by the Dutch explorer Frederick de Houtman in 1603. [12] With an apparent visual magnitude of 5.3, [2] this star can be seen with the naked eye from the southern hemisphere.
Alpha Horologii (α Horologii) is a solitary [10] orange-hued giant star and the brightest star in the constellation Horologium. It is visible to the naked eye with an apparent visual magnitude of +3.85. [2] Based upon an parallax shift of 27.721 mas as seen from the Earth, it is located at a distance of 36 light-years (11 parsecs). [1]
This is the list of notable stars in the constellation Horologium, sorted by decreasing brightness. Name B Var HD HIP RA Dec vis. mag. abs. mag. Dist. Sp. class Notes
Horologium, a turret clock built in 1283 in Dunstable, UK; Horologium Sapientiae ("Clock of Wisdom"), a 14th-century book on spirituality by Henry Suso; Horologium Oscillatorium, a 17th-century book by Christiaan Huygens on pendulum clocks; Horologium (constellation), in the southern celestial hemisphere named in honor of Huygens's work
A domestic clock housed in a wooden case, it gives indications including the solar, mean and sidereal time around the world, the positions of the constellations and planets, and the appearance of Halley's Comet. [17] Sint-Truiden. The astronomical clock constructed by Kamiel Festraets between 1937 and 1942 is now housed in the Festraets Museum.
According to traditional Chinese uranography, the modern constellation Horologium is located within the western quadrant of the sky, which is symbolized as The White Tiger of the West (西方白虎, Xī Fāng Bái Hǔ) The name of the western constellation in modern Chinese is 時鐘座 (shí zhōng zuò), meaning "the clock constellation".
λ Horologii, Latinised as Lambda Horologii, is a star in the southern constellation of Horologium. It is a yellow-white hued star that is dimly visible to the naked eye with an apparent visual magnitude of +5.35. [2] Based upon parallax, this object is located 155 light years distance from the Sun.