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66 relations: Age of Enlightenment, Alpha Horologii, Antlia, Apparent magnitude, Arp-Madore 1, Astronomer, Barred spiral galaxy, Bayer designation, Beta Horologii, Caelum, Cambridge University Press, Cape of Good Hope, Carbon star, Circinus, Constellation, Constellation family, Debris disk, Declination, Dorado, Equatorial coordinate system, Eridanus (constellation), Fornax, Giant star, Gliese 1061, Globular cluster, HD 27631, Horologium Supercluster, Hydrus, Ian Ridpath, International Astronomical Union, Iota Horologii, Kingdom of France, Lambda Horologii, Mensa (constellation), Microscopium, Milky Way, Mira variable, Mu Horologii, NGC 1261, NGC 1512, Nicolas-Louis de Lacaille, Norma (constellation), Nu Horologii, Octans, Pendulum clock, Pictor, Po (river), Popular Astronomy (US magazine), Pyxis, R Horologii, ..., Red giant, Reticulum, Right ascension, Sculptor (constellation), Sky & Telescope, South Pole, Southern celestial hemisphere, Springer Science+Business Media, Supercluster, Table Mountain, Telescopium, TW Horologii, 23rd parallel north, 30th parallel north, 50th parallel north, 88 modern constellations. Expand index (16 more) »
Age of Enlightenment
The Enlightenment (also known as the Age of Enlightenment or the Age of Reason; in lit in Aufklärung, "Enlightenment", in L’Illuminismo, “Enlightenment” and in Spanish: La Ilustración, "Enlightenment") was an intellectual and philosophical movement that dominated the world of ideas in Europe during the 18th century, "The Century of Philosophy".
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Alpha Horologii
Alpha Horologii (α Horologii) is a solitary orange-hued giant star in the constellation Horologium.
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Antlia
Antlia (from Ancient Greek ἀντλία) is a constellation in the Southern Celestial Hemisphere.
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Apparent magnitude
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
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Arp-Madore 1
Arp-Madore 1 is a globular cluster visible in the constellation Horologium, located 398,000 light-years away.
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Astronomer
An astronomer is a scientist in the field of astronomy who concentrates their studies on a specific question or field outside the scope of Earth.
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Barred spiral galaxy
A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars.
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Bayer designation
A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name.
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Beta Horologii
Beta Horologii, Latinized from β Horologii, is the third-brightest star in the southern constellation of Horologium.
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Caelum
Caelum is a faint constellation in the southern sky, introduced in the 1750s by Nicolas Louis de Lacaille and counted among the 88 modern constellations.
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Cambridge University Press
Cambridge University Press (CUP) is the publishing business of the University of Cambridge.
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Cape of Good Hope
The Cape of Good Hope (Kaap die Goeie Hoop, Kaap de Goede Hoop, Cabo da Boa Esperança) is a rocky headland on the Atlantic coast of the Cape Peninsula, South Africa.
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Carbon star
A carbon star is typically an asymptotic giant branch star, a luminous red giant, whose atmosphere contains more carbon than oxygen; the two elements combine in the upper layers of the star, forming carbon monoxide, which consumes all the oxygen in the atmosphere, leaving carbon atoms free to form other carbon compounds, giving the star a "sooty" atmosphere and a strikingly ruby red appearance.
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Circinus
Circinus is a small, faint constellation in the southern sky, first defined in 1756 by the French astronomer Nicolas-Louis de Lacaille.
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Constellation
A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.
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Constellation family
Constellation families are collections of constellations sharing some defining characteristic, such as proximity on the celestial sphere, common historical origin, or common mythological theme.
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Debris disk
A debris disk is a circumstellar disk of dust and debris in orbit around a star.
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Declination
In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle.
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Dorado
Dorado (English pronunciation) is a constellation in the southern sky.
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Equatorial coordinate system
The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects.
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Eridanus (constellation)
Eridanus is a constellation in the southern hemisphere.
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Fornax
Fornax is a constellation in the southern sky, partly ringed by the celestial river Eridanus.
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Giant star
A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.
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Gliese 1061
Gliese 1061 is a type of star known as a red dwarf, located approximately 12 light-years from Earth in the southern constellation of Horologium.
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Globular cluster
A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite.
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HD 27631
HD 27631 is a G-class yellow dwarf star.
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Horologium Supercluster
The Horologium Supercluster, also known as Horologium-Reticulum Supercluster, consisting of SCl 48 and SCl 49) is a massive supercluster; spanning about 550 million light-years, it has a mass of 1017 solar masses, similar to that of the Laniakea Supercluster that houses the Milky Way. It is centered on coordinates right ascension and declination, and spans an angular area of 12° × 12°. The nearest part of the supercluster is 700 million light-years (z.
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Hydrus
Hydrus is a small constellation in the deep southern sky.
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Ian Ridpath
Ian William Ridpath (born 1 May 1947, Ilford, Essex) is an English science writer and broadcaster best known as a popularizer of astronomy and a biographer of constellation history.
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International Astronomical Union
The International Astronomical Union (IAU; Union astronomique internationale, UAI) is an international association of professional astronomers, at the PhD level and beyond, active in professional research and education in astronomy.
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Iota Horologii
Iota Horologii, Latinized from ι Horologii, is a yellow-hued star approximately 56 light-years away in the Horologium constellation.
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Kingdom of France
The Kingdom of France (Royaume de France) was a medieval and early modern monarchy in Western Europe.
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Lambda Horologii
λ Horologii, Latinised as Lambda Horologii, is a yellow-white giant star in the constellation Horologium.
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Mensa (constellation)
Mensa is a constellation in the Southern Celestial Hemisphere near the south celestial pole, one of twelve constellations drawn up in the 18th century by French astronomer Nicolas Louis de Lacaille.
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Microscopium
Microscopium is a minor constellation in the Southern Celestial Hemisphere, one of twelve created in the 18th century by French astronomer Nicolas Louis de Lacaille and one of several depicting scientific instruments.
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Milky Way
The Milky Way is the galaxy that contains our Solar System.
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Mira variable
Mira variables ("Mira", Latin, adj. - feminine form of adjective "wonderful"), named for the prototype star Mira, are a class of pulsating variable stars characterized by very red colours, pulsation periods longer than 100 days, and amplitudes greater than one magnitude in infrared and 2.5 magnitude at visual wavelengths.
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Mu Horologii
Mu Horologii (μ Horologii) is a solitary, yellow-white hued star in the southern constellation of Horologium.
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NGC 1261
NGC 1261, also known as Caldwell 87, is a globular cluster in the constellation Horologium, first discovered by James Dunlop in 1826.
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NGC 1512
NGC 1512 is a barred spiral galaxy approximately 38 million light-years away from Earth in the constellation Horologium.
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Nicolas-Louis de Lacaille
Abbé Nicolas-Louis de Lacaille, formerly sometimes spelled de la Caille, (15 March 1713 – 21 March 1762) was a French astronomer.
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Norma (constellation)
Norma is a small constellation in the Southern Celestial Hemisphere between Ara and Lupus, one of twelve drawn up in the 18th century by French astronomer Nicolas-Louis de Lacaille and one of several depicting scientific instruments.
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Nu Horologii
Nu Horologii, Latinized from ν Horologii, is the Bayer designation for a single star in the southern constellation of Horologium.
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Octans
Octans is a faint constellation located in the deep southern sky.
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Pendulum clock
A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element.
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Pictor
Pictor is a constellation in the Southern Celestial Hemisphere, located between the star Canopus and the Large Magellanic Cloud.
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Po (river)
The Po (Padus and Eridanus; Po; ancient Ligurian: Bodincus or Bodencus; Πάδος, Ἠριδανός) is a river that flows eastward across northern Italy.
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Popular Astronomy (US magazine)
Popular Astronomy is an American magazine published by John August Media, LLC and hosted at TechnicaCuriosa.com for amateur astronomers.
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Pyxis
Pyxis is a small and faint constellation in the southern sky.
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R Horologii
R Horologii (also known as HD 18242) is a red giant star approximately 700 light-years away in the constellation Horologium.
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Red giant
A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.
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Reticulum
Reticulum is a small, faint constellation in the southern sky.
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Right ascension
Right ascension (abbreviated RA; symbol) is the angular distance measured only eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point above the earth in question.
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Sculptor (constellation)
Sculptor is a small and faint constellation in the southern sky.
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Sky & Telescope
Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy, including the following.
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South Pole
The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface.
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Southern celestial hemisphere
The Southern Celestial Hemisphere, or the Southern Sky, is the southern half of the celestial sphere, which appears to rotate around a polar axis due to Earth's rotation.
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Springer Science+Business Media
Springer Science+Business Media or Springer, part of Springer Nature since 2015, is a global publishing company that publishes books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing.
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Supercluster
A supercluster is a large group of smaller galaxy clusters or galaxy groups; it is among the largest-known structures of the cosmos.
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Table Mountain
Table Mountain (Khoekhoe: Huri ‡oaxa, where the sea rises; Afrikaans: Tafelberg) is a flat-topped mountain forming a prominent landmark overlooking the city of Cape Town in South Africa.
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Telescopium
Telescopium is a minor constellation in the southern celestial hemisphere, one of twelve named in the 18th century by French astronomer Nicolas-Louis de Lacaille and one of several depicting scientific instruments.
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TW Horologii
TW Horologii is a star in the constellation Horologium.
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23rd parallel north
The 23rd parallel north is a circle of latitude that is 23 degrees north of the Earth's equatorial plane.
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30th parallel north
The 30th parallel north is a circle of latitude that is 30 degrees north of the Earth's equatorial plane.
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50th parallel north
The 50th parallel north is a circle of latitude that is 50 degrees north of the Earth's equatorial plane.
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88 modern constellations
In modern astronomy, the sky (celestial sphere) is divided into 88 regions called constellations, generally based on the asterisms (which are also called "constellations") of Greek and Roman mythology.
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References
[1] https://en.wikipedia.org/wiki/Horologium_(constellation)
