Table of Contents
111 relations: A-type main-sequence star, Abell catalogue, Age of Enlightenment, Alpha Horologii, Ancient Greek, Antlia, Apparent magnitude, Arp-Madore 1, Astronomer, Astronomical Society of Southern Africa, Astronomical unit, Barred spiral galaxy, Bayer designation, Benjamin Apthorp Gould, Beta Horologii, Binary star, Caelum, Cambridge University Press, Cape of Good Hope, Carbon star, Chisel, Circinus, Constellation, Constellation family, Debris disk, Declination, Deep-sky object, Delta Horologii, Dolphin, Dorado, Double star, Dwarf galaxy, Effective temperature, Equatorial coordinate system, Eridanus (constellation), Exoplanet, Fornax, Francis Baily, Giant star, GJ 1061, Globular cluster, Habitable zone, HD 27631, Horologium in Chinese astronomy, Horologium-Reticulum Supercluster, Hyades (star cluster), Hydrus, IAU designated constellations, International Astronomical Union, Iota Horologii, ... Expand index (61 more) »
- Constellations listed by Lacaille
- Southern constellations
A-type main-sequence star
An A-type main-sequence star (A) or A dwarf star is a main-sequence (hydrogen burning) star of spectral type A and luminosity class (five).
See Horologium (constellation) and A-type main-sequence star
Abell catalogue
The Abell catalog of rich clusters of galaxies is an all-sky catalog of 4,073 rich galaxy clusters of nominal redshift z ≤ 0.2.
See Horologium (constellation) and Abell catalogue
Age of Enlightenment
The Age of Enlightenment (also the Age of Reason and the Enlightenment) was the intellectual and philosophical movement that occurred in Europe in the 17th and the 18th centuries.
See Horologium (constellation) and Age of Enlightenment
Alpha Horologii
Alpha Horologii (α Horologii) is a solitary orange-hued giant star and the brightest star in the constellation Horologium.
See Horologium (constellation) and Alpha Horologii
Ancient Greek
Ancient Greek (Ἑλληνῐκή) includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC.
See Horologium (constellation) and Ancient Greek
Antlia
Antlia (from Ancient Greek ἀντλία) is a constellation in the Southern Celestial Hemisphere. Horologium (constellation) and Antlia are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Antlia
Apparent magnitude
Apparent magnitude is a measure of the brightness of a star or other astronomical object.
See Horologium (constellation) and Apparent magnitude
Arp-Madore 1
Arp-Madore 1 (also known as AM 1) is a globular cluster visible in the constellation Horologium, located away from Earth.
See Horologium (constellation) and Arp-Madore 1
Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth.
See Horologium (constellation) and Astronomer
Astronomical Society of Southern Africa
The Astronomical Society of Southern Africa (ASSA), formed in 1922, is a widespread body consisting of both amateur and professional astronomers.
See Horologium (constellation) and Astronomical Society of Southern Africa
Astronomical unit
The astronomical unit (symbol: au, or AU) is a unit of length defined to be exactly equal to.
See Horologium (constellation) and Astronomical unit
Barred spiral galaxy
A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars.
See Horologium (constellation) and Barred spiral galaxy
Bayer designation
A Bayer designation is a stellar designation in which a specific star is identified by a Greek or Latin letter followed by the genitive form of its parent constellation's Latin name.
See Horologium (constellation) and Bayer designation
Benjamin Apthorp Gould
Benjamin Apthorp Gould (September 27, 1824 – November 26, 1896) was a pioneering American astronomer.
See Horologium (constellation) and Benjamin Apthorp Gould
Beta Horologii
Beta Horologii, Latinized from β Horologii, is the third-brightest star in the southern constellation of Horologium.
See Horologium (constellation) and Beta Horologii
Binary star
A binary star or binary star system is a system of two stars that are gravitationally bound to and in orbit around each other.
See Horologium (constellation) and Binary star
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. Horologium (constellation) and Caelum are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Caelum
Cambridge University Press
Cambridge University Press is the university press of the University of Cambridge.
See Horologium (constellation) and Cambridge University Press
Cape of Good Hope
The Cape of Good Hope (Kaap die Goeie Hoop) is a rocky headland on the Atlantic coast of the Cape Peninsula in South Africa.
See Horologium (constellation) and Cape of Good Hope
Carbon star
A carbon star (C-type star) is typically an asymptotic giant branch star, a luminous red giant, whose atmosphere contains more carbon than oxygen.
See Horologium (constellation) and Carbon star
Chisel
A chisel is a wedged hand tool with a characteristically shaped cutting edge on the end of its blade, for carving or cutting a hard material (e.g. wood, stone, or metal).
See Horologium (constellation) and Chisel
Circinus
Circinus is a small, faint constellation in the southern sky, first defined in 1756 by the French astronomer Nicolas-Louis de Lacaille. Horologium (constellation) and Circinus are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Circinus
Constellation
A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object.
See Horologium (constellation) and Constellation
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.
See Horologium (constellation) and Constellation family
Debris disk
A debris disk (American English), or debris disc (Commonwealth English), is a circumstellar disk of dust and debris in orbit around a star.
See Horologium (constellation) and Debris disk
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.
See Horologium (constellation) and Declination
Deep-sky object
A deep-sky object (DSO) is any astronomical object that is not an individual star or Solar System object (such as Sun, Moon, planet, comet, etc.). The classification is used for the most part by amateur astronomers to denote visually observed faint naked eye and telescopic objects such as star clusters, nebulae and galaxies.
See Horologium (constellation) and Deep-sky object
Delta Horologii
Delta Horologii (δ Horologii) is a binary star system in the constellation Horologium.
See Horologium (constellation) and Delta Horologii
Dolphin
A dolphin is an aquatic mammal in the clade Odontoceti (toothed whale).
See Horologium (constellation) and Dolphin
Dorado
Dorado is a constellation in the Southern Sky. Horologium (constellation) and Dorado are southern constellations.
See Horologium (constellation) and Dorado
Double star
In observational astronomy, a double star or visual double is a pair of stars that appear close to each other as viewed from Earth, especially with the aid of optical telescopes.
See Horologium (constellation) and Double star
Dwarf galaxy
A dwarf galaxy is a small galaxy composed of about 1000 up to several billion stars, as compared to the Milky Way's 200–400 billion stars.
See Horologium (constellation) and Dwarf galaxy
Effective temperature
The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.
See Horologium (constellation) and Effective temperature
Equatorial coordinate system
The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects.
See Horologium (constellation) and Equatorial coordinate system
Eridanus (constellation)
Eridanus is a constellation which stretches along the southern celestial hemisphere.
See Horologium (constellation) and Eridanus (constellation)
Exoplanet
An exoplanet or extrasolar planet is a planet outside the Solar System.
See Horologium (constellation) and Exoplanet
Fornax
Fornax is a constellation in the southern celestial hemisphere, partly ringed by the celestial river Eridanus. Horologium (constellation) and Fornax are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Fornax
Francis Baily
Francis Baily (28 April 177430 August 1844) was an English astronomer.
See Horologium (constellation) and Francis Baily
Giant star
A giant star has a substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.
See Horologium (constellation) and Giant star
GJ 1061
GJ 1061 is a red dwarf star located from Earth in the southern constellation of Horologium.
See Horologium (constellation) and GJ 1061
Globular cluster
A globular cluster is a spheroidal conglomeration of stars that is bound together by gravity, with a higher concentration of stars towards its center.
See Horologium (constellation) and Globular cluster
Habitable zone
In astronomy and astrobiology, the habitable zone (HZ), or more precisely the circumstellar habitable zone (CHZ), is the range of orbits around a star within which a planetary surface can support liquid water given sufficient atmospheric pressure.
See Horologium (constellation) and Habitable zone
HD 27631
HD 27631 is a star with an orbiting exoplanet in the southern constellation of Horologium.
See Horologium (constellation) and HD 27631
Horologium in Chinese astronomy
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".
See Horologium (constellation) and Horologium in Chinese astronomy
Horologium-Reticulum Supercluster
The Horologium-Reticulum Supercluster, is a massive supercluster spanning around 550 million light-years.
See Horologium (constellation) and Horologium-Reticulum Supercluster
Hyades (star cluster)
The Hyades (Greek Ὑάδες, also known as Caldwell 41, Collinder 50, or Melotte 25) is the nearest open cluster and one of the best-studied star clusters.
See Horologium (constellation) and Hyades (star cluster)
Hydrus
Hydrus is a small constellation in the deep southern sky. Horologium (constellation) and Hydrus are southern constellations.
See Horologium (constellation) and Hydrus
IAU designated constellations
In contemporary astronomy, 88 constellations are recognized by the International Astronomical Union (IAU).
See Horologium (constellation) and IAU designated constellations
International Astronomical Union
The International Astronomical Union (IAU; Union astronomique internationale, UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation.
See Horologium (constellation) and International Astronomical Union
Iota Horologii
Iota Horologii, Latinized from ι Horologii, is a yellow-hued star approximately 56.5 light-years away in the Horologium constellation.
See Horologium (constellation) and Iota Horologii
Johann Elert Bode
Johann Elert Bode (19 January 1747 – 23 November 1826) was a German astronomer known for his reformulation and popularisation of the Titius–Bode law.
See Horologium (constellation) and Johann Elert Bode
Jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
See Horologium (constellation) and Jupiter
Kelvin
The kelvin, symbol K, is the base unit of measurement for temperature in the International System of Units (SI).
See Horologium (constellation) and Kelvin
Lambda Horologii
λ Horologii, Latinised as Lambda Horologii, is a star in the southern constellation of Horologium.
See Horologium (constellation) and Lambda Horologii
Latinisation of names
Latinisation (or Latinization) of names, also known as onomastic Latinisation, is the practice of rendering a non-Latin name in a modern Latin style.
See Horologium (constellation) and Latinisation of names
Lenticular galaxy
A lenticular galaxy (denoted S0) is a type of galaxy intermediate between an elliptical (denoted E) and a spiral galaxy in galaxy morphological classification schemes.
See Horologium (constellation) and Lenticular galaxy
Lexico
Lexico was a dictionary website that provided a collection of English and Spanish dictionaries produced by Oxford University Press (OUP), the publishing house of the University of Oxford.
See Horologium (constellation) and Lexico
Light-year
A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly 9,460,730,472,580.8 km (Scientific notation: 9.4607304725808 × 1012 km), which is approximately 5.88 trillion mi.
See Horologium (constellation) and Light-year
Luminosity
Luminosity is an absolute measure of radiated electromagnetic energy (light) per unit time, and is synonymous with the radiant power emitted by a light-emitting object.
See Horologium (constellation) and Luminosity
Mensa (constellation)
Mensa is a constellation in the Southern Celestial Hemisphere near the south celestial pole, one of fourteen constellations drawn up in the 18th century by French astronomer Nicolas-Louis de Lacaille. Horologium (constellation) and Mensa (constellation) are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Mensa (constellation)
Microscopium
Microscopium ("the Microscope") 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. Horologium (constellation) and Microscopium are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Microscopium
Milky Way
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.
See Horologium (constellation) and Milky Way
Minute and second of arc
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol, is a unit of angular measurement equal to of one degree.
See Horologium (constellation) and Minute and second of arc
Mira variable
Mira variables (named for the prototype star Mira) are a class of pulsating 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.
See Horologium (constellation) and Mira variable
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal in astronomy, astrophysics and related fields.
See Horologium (constellation) and Monthly Notices of the Royal Astronomical Society
Mu Horologii
Mu Horologii (μ Horologii) is a solitary, yellow-white hued star in the southern constellation of Horologium.
See Horologium (constellation) and Mu Horologii
NGC 1261
NGC 1261 (also known as Caldwell 87) is a globular cluster of stars in the southern constellation of Horologium, first discovered by Scottish astronomer James Dunlop in 1826.
See Horologium (constellation) and NGC 1261
NGC 1510
NGC 1510 is a dwarf lenticular galaxy approximately 38 million light-years away from Earth in the constellation of Horologium.
See Horologium (constellation) and NGC 1510
NGC 1512
NGC 1512 is a barred spiral galaxy approximately 38 million light-years away from Earth in the constellation Horologium.
See Horologium (constellation) and NGC 1512
Nicolas-Louis de Lacaille
Abbé Nicolas-Louis de Lacaille (15 March 171321 March 1762), formerly sometimes spelled de la Caille, was a French astronomer and geodesist who named 14 out of the 88 constellations.
See Horologium (constellation) and Nicolas-Louis de Lacaille
Night sky
The night sky is the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon.
See Horologium (constellation) and Night sky
Nile
The Nile (also known as the Nile River) is a major north-flowing river in northeastern Africa.
See Horologium (constellation) and Nile
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. Horologium (constellation) and Norma (constellation) are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Norma (constellation)
Nu Horologii
Nu Horologii, Latinized from ν Horologii, is the Bayer designation for a single star in the southern constellation of Horologium.
See Horologium (constellation) and Nu Horologii
Octans
Octans is a faint constellation located in the deep Southern Sky. Horologium (constellation) and Octans are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Octans
Oxford University Press
Oxford University Press (OUP) is the publishing house of the University of Oxford.
See Horologium (constellation) and Oxford University Press
Pendulum
A pendulum is a device made of a weight suspended from a pivot so that it can swing freely.
See Horologium (constellation) and Pendulum
Pendulum clock
A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element.
See Horologium (constellation) and Pendulum clock
Photosphere
The photosphere is a star's outer shell from which light is radiated.
See Horologium (constellation) and Photosphere
Pictor
Pictor is a constellation in the Southern Celestial Hemisphere, located between the star Canopus and the Large Magellanic Cloud. Horologium (constellation) and Pictor are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Pictor
Po (river)
The Po is the longest river in Italy.
See Horologium (constellation) and Po (river)
Popular Astronomy (US magazine)
Popular Astronomy is an American magazine published by John August Media, LLC and hosted at TechnicaCuriosa.com for amateur astronomers.
See Horologium (constellation) and Popular Astronomy (US magazine)
Pyxis
Pyxis is a small and faint constellation in the southern sky. Horologium (constellation) and Pyxis are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Pyxis
R Horologii
R Horologii is a red giant star approximately 760 light-years away in the southern constellation of Horologium.
See Horologium (constellation) and R Horologii
Red dwarf
A red dwarf is the smallest kind of star on the main sequence.
See Horologium (constellation) and Red dwarf
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.
See Horologium (constellation) and Red giant
Reticle
A reticle, or reticule also known as a graticule, is a pattern of fine lines or markings built into the eyepiece of an optical device such as a telescopic sight, spotting scope, theodolite, optical microscope or the screen of an oscilloscope, to provide measurement references during visual inspections.
See Horologium (constellation) and Reticle
Reticulum
Reticulum is a small, faint constellation in the southern sky. Horologium (constellation) and Reticulum are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Reticulum
Right ascension
Right ascension (abbreviated RA; symbol) is the angular distance of a particular point measured eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point in question above the Earth.
See Horologium (constellation) and Right ascension
Scientific instrument
A scientific instrument is a device or tool used for scientific purposes, including the study of both natural phenomena and theoretical research.
See Horologium (constellation) and Scientific instrument
Sculptor (constellation)
Sculptor is a faint constellation in the southern sky. Horologium (constellation) and Sculptor (constellation) are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Sculptor (constellation)
Semiregular variable star
In astronomy, a semiregular variable star, a type of variable star, is a giant or supergiant of intermediate and late (cooler) spectral type showing considerable periodicity in its light changes, accompanied or sometimes interrupted by various irregularities.
See Horologium (constellation) and Semiregular variable star
Shapley Supercluster
The Shapley Supercluster or Shapley Concentration (SCl 124) is the largest concentration of galaxies in our nearby universe that forms a gravitationally interacting unit, thereby pulling itself together instead of expanding with the universe.
See Horologium (constellation) and Shapley Supercluster
Sky & Telescope
Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy, including the following.
See Horologium (constellation) and Sky & Telescope
Solar luminosity
The solar luminosity is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.
See Horologium (constellation) and Solar luminosity
Solar mass
The solar mass is a standard unit of mass in astronomy, equal to approximately.
See Horologium (constellation) and Solar mass
South Pole
The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is the southernmost point on Earth and lies antipodally on the opposite side of Earth from the North Pole, at a distance of 20,004 km (12,430 miles) in all directions.
See Horologium (constellation) and South Pole
Southern celestial hemisphere
The southern celestial hemisphere, also called the Southern Sky, is the southern half of the celestial sphere; that is, it lies south of the celestial equator.
See Horologium (constellation) and Southern celestial hemisphere
Springer Science+Business Media
Springer Science+Business Media, commonly known as Springer, is a German multinational publishing company of books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing.
See Horologium (constellation) and Springer Science+Business Media
Square degree
A square degree (deg2) is a non-SI unit measure of solid angle.
See Horologium (constellation) and Square degree
Star
A star is a luminous spheroid of plasma held together by self-gravity.
See Horologium (constellation) and Star
Supercluster
A supercluster is a large group of smaller galaxy clusters or galaxy groups; they are among the largest known structures in the universe.
See Horologium (constellation) and Supercluster
Swordfish
The swordfish (Xiphias gladius), also known as the broadbill in some countries, are large, highly migratory predatory fish characterized by a long, flat, pointed bill.
See Horologium (constellation) and Swordfish
Table Mountain
Table Mountain (lit; Tafelberg) is a flat-topped mountain forming a prominent landmark overlooking the city of Cape Town in South Africa.
See Horologium (constellation) and Table Mountain
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. Horologium (constellation) and Telescopium are constellations listed by Lacaille and southern constellations.
See Horologium (constellation) and Telescopium
TW Horologii
TW Horologii is a carbon star and semiregular variable in the southern constellation of Horologium, near the eastern constellation border with Reticulum.
See Horologium (constellation) and TW Horologii
Variable star
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) changes with time.
See Horologium (constellation) and Variable star
Water snake
Different snakes are called water snakes.
See Horologium (constellation) and Water snake
23rd parallel north
The 23rd parallel north is a circle of latitude that is 23 degrees north of the Earth's equatorial plane, about south of the Tropic of Cancer.
See Horologium (constellation) and 23rd parallel north
30th parallel north
The 30th parallel north is a circle of latitude that is 30 degrees north of the Earth's equatorial plane.
See Horologium (constellation) and 30th parallel north
50th parallel north
The 50th parallel north is a circle of latitude that is 50 degrees north of the Earth's equatorial plane.
See Horologium (constellation) and 50th parallel north
See also
Constellations listed by Lacaille
- Antlia
- Caelum
- Carina (constellation)
- Circinus
- Fornax
- Horologium (constellation)
- Mensa (constellation)
- Microscopium
- Norma (constellation)
- Octans
- Pictor
- Puppis
- Pyxis
- Reticulum
- Sculptor (constellation)
- Telescopium
- Vela (constellation)
Southern constellations
- Antlia
- Apus
- Ara (constellation)
- Caelum
- Canis Major
- Capricornus
- Carina (constellation)
- Centaurus
- Chamaeleon
- Circinus
- Columba (constellation)
- Corona Australis
- Corvus (constellation)
- Crater (constellation)
- Crux
- Dorado
- Fornax
- Grus (constellation)
- Horologium (constellation)
- Hydrus
- Indus (constellation)
- Lepus (constellation)
- Libra (constellation)
- Lupus (constellation)
- Mensa (constellation)
- Microscopium
- Musca
- Norma (constellation)
- Octans
- Pavo (constellation)
- Phoenix (constellation)
- Pictor
- Piscis Austrinus
- Puppis
- Pyxis
- Reticulum
- Sagittarius (constellation)
- Scorpius
- Sculptor (constellation)
- Scutum (constellation)
- Telescopium
- Triangulum Australe
- Tucana
- Vela (constellation)
- Volans
References
Also known as Clock (constellation), Constellation Horologium, Horologium constellation.