80 relations: Aitken Double Star Catalogue, Algol variable, American Association of Variable Star Observers, American Astronomical Society, Apparent magnitude, Arabic, Asterism (astronomy), Astronomical unit, Astronomy Picture of the Day, Asymptotic giant branch, Auriga (constellation), B-type main-sequence star, Bayer designation, Bengt Strömgren, Binary mass function, Binary star, Black body, Black hole, Bright Star Catalogue, Canis Minor, Capella, Catalog of Components of Double and Multiple Stars, Catalogues of Fundamental Stars, Chi Aurigae, Chinese language, Circinus X-1, Citizen science, Constellation, Cygnus X-1, Durchmusterung, Eclipse, Eduard Heis, Epsilon Aurigae, Eta Aurigae, Far Ultraviolet Spectroscopic Explorer, Flamsteed designation, Friedrich Wilhelm Argelander, Georgia State University, Gerard Kuiper, Hans Ludendorff, Henry Draper Catalogue, Hipparcos, IAU Working Group on Star Names, International Astronomical Union, International Year of Astronomy, Julian day, Latinisation of names, Light curve, Light pollution, Light-year, ..., Main sequence, Margherita Hack, NASA, National Science Foundation, Neptune, Net (Chinese constellation), Nu Aurigae, Otto Struve, Procyon, Robert Wilson (astronomer), Smithsonian Astrophysical Observatory Star Catalog, Solar radius, Spectral energy distribution, Star Names, Star system, Statistics, Stellar classification, Su-Shu Huang, Sun, Supergiant star, Tau Aurigae, Thomas Hyde, Ulugh Beg, Upsilon Aurigae, Variable star, Washington Double Star Catalog, Yellow supergiant star, Zakariya al-Qazwini, Zeta Aurigae, 26 Aurigae. Expand index (30 more) » « Shrink index
The Aitken Double Star Catalogue, or ADS, is a star catalogue of double stars.
Algol variables or Algol-type binaries are a class of eclipsing binary stars that are related to the prototype member of this class, β Persei (Beta Persei, Algol) from an evolutionary point of view.
Since its founding in 1911, the American Association of Variable Star Observers (AAVSO) has coordinated, collected, evaluated, analyzed, published, and archived variable star observations made largely by amateur astronomers and makes the records available to professional astronomers, researchers, and educators.
The American Astronomical Society (AAS, sometimes spoken as "double-A-S") is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC.
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
Arabic (العَرَبِيَّة) or (عَرَبِيّ) or) is a Central Semitic language that first emerged in Iron Age northwestern Arabia and is now the lingua franca of the Arab world. It is named after the Arabs, a term initially used to describe peoples living from Mesopotamia in the east to the Anti-Lebanon mountains in the west, in northwestern Arabia, and in the Sinai peninsula. Arabic is classified as a macrolanguage comprising 30 modern varieties, including its standard form, Modern Standard Arabic, which is derived from Classical Arabic. As the modern written language, Modern Standard Arabic is widely taught in schools and universities, and is used to varying degrees in workplaces, government, and the media. The two formal varieties are grouped together as Literary Arabic (fuṣḥā), which is the official language of 26 states and the liturgical language of Islam. Modern Standard Arabic largely follows the grammatical standards of Classical Arabic and uses much of the same vocabulary. However, it has discarded some grammatical constructions and vocabulary that no longer have any counterpart in the spoken varieties, and has adopted certain new constructions and vocabulary from the spoken varieties. Much of the new vocabulary is used to denote concepts that have arisen in the post-classical era, especially in modern times. During the Middle Ages, Literary Arabic was a major vehicle of culture in Europe, especially in science, mathematics and philosophy. As a result, many European languages have also borrowed many words from it. Arabic influence, mainly in vocabulary, is seen in European languages, mainly Spanish and to a lesser extent Portuguese, Valencian and Catalan, owing to both the proximity of Christian European and Muslim Arab civilizations and 800 years of Arabic culture and language in the Iberian Peninsula, referred to in Arabic as al-Andalus. Sicilian has about 500 Arabic words as result of Sicily being progressively conquered by Arabs from North Africa, from the mid 9th to mid 10th centuries. Many of these words relate to agriculture and related activities (Hull and Ruffino). Balkan languages, including Greek and Bulgarian, have also acquired a significant number of Arabic words through contact with Ottoman Turkish. Arabic has influenced many languages around the globe throughout its history. Some of the most influenced languages are Persian, Turkish, Spanish, Urdu, Kashmiri, Kurdish, Bosnian, Kazakh, Bengali, Hindi, Malay, Maldivian, Indonesian, Pashto, Punjabi, Tagalog, Sindhi, and Hausa, and some languages in parts of Africa. Conversely, Arabic has borrowed words from other languages, including Greek and Persian in medieval times, and contemporary European languages such as English and French in modern times. Classical Arabic is the liturgical language of 1.8 billion Muslims and Modern Standard Arabic is one of six official languages of the United Nations. All varieties of Arabic combined are spoken by perhaps as many as 422 million speakers (native and non-native) in the Arab world, making it the fifth most spoken language in the world. Arabic is written with the Arabic alphabet, which is an abjad script and is written from right to left, although the spoken varieties are sometimes written in ASCII Latin from left to right with no standardized orthography.
In observational astronomy, an asterism is a popular known pattern or group of stars that are recognised in the night sky.
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
Astronomy Picture of the Day (APOD) is a website provided by NASA and Michigan Technological University (MTU).
The asymptotic giant branch (AGB) is a region of the Hertzsprung–Russell diagram populated by evolved cool luminous stars.
Auriga is one of the 88 modern constellations; it was among the 48 constellations listed by the 2nd-century astronomer Ptolemy.
A B-type main-sequence star (B V) is a main-sequence (hydrogen-burning) star of spectral type B and luminosity class V. These stars have from 2 to 16 times the mass of the Sun and surface temperatures between 10,000 and 30,000 K. B-type stars are extremely luminous and blue.
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.
Bengt Georg Daniel Strömgren (21 January 1908 – 4 July 1987) was a Danish astronomer and astrophysicist.
In astronomy, the binary mass function or simply mass function is a function that constrains the mass of the unseen component (typically a star or exoplanet) in a single-lined spectroscopic binary star or in a planetary system.
A binary star is a star system consisting of two stars orbiting around their common barycenter.
A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence.
A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it.
The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth.
Canis Minor is a small constellation in the northern celestial hemisphere.
Capella, also designated Alpha Aurigae (α Aurigae, abbreviated Alpha Aur, α Aur), is the brightest star in the constellation of Auriga, the sixth-brightest in the night sky, and the third-brightest in the northern celestial hemisphere after Arcturus and Vega.
The Catalog of Components of Double and Multiple Stars, or CCDM, is an astrometric star catalogue of double and multiple stars.
The Catalogue of Fundamental Stars is a series of six astrometric catalogues of high precision positional data for a small selection of stars to define a celestial reference frame, which is a standard coordinate system for measuring positions of stars.
Chi Aurigae (χ Aur, χ Aurigae) is the Bayer designation for a binary star in the northern constellation of Auriga.
Chinese is a group of related, but in many cases mutually unintelligible, language varieties, forming a branch of the Sino-Tibetan language family.
Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.
The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.
Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.
Christmas traditions vary from country to country.
Circinus X-1 is an X-ray binary star system that includes a neutron star.
Citizen science (CS; also known as community science, crowd science, crowd-sourced science, civic science, volunteer monitoring, or networked science) is scientific research conducted, in whole or in part, by amateur (or nonprofessional) scientists.
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.
Cygnus X-1 (abbreviated Cyg X-1) is a galactic X-ray source in the constellation Cygnus, and the first such source widely accepted to be a black hole.
In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.
An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer.
Eduard Heis (18 February 1806, Cologne – 30 June 1877 in Münster) was a German mathematician and astronomer.
Epsilon Aurigae (ε Aurigae, abbreviated Eps Aur, ε Aur) is a multiple star system in the northern constellation of Auriga.
Eta Aurigae (η Aurigae, abbreviated Eta Aur, η Aur), also named Haedus, is a star in the northern constellation of Auriga.
The Far Ultraviolet Spectroscopic Explorer (FUSE) is a space-based telescope operated by the Johns Hopkins University Applied Physics Laboratory.
A Flamsteed designation is a combination of a number and constellation name that uniquely identifies most naked eye stars in the modern constellations visible from southern England.
Friedrich Wilhelm August Argelander (22 March 1799 – 17 February 1875) was a German astronomer.
Georgia State University (commonly referred to as Georgia State, State, or GSU) is a public research university in downtown Atlanta, Georgia, United States.
Gerard Peter Kuiper (born Gerrit Pieter Kuiper; December 7, 1905 – December 23, 1973) was a Dutch–American astronomer, planetary scientist, selenographer, author and professor.
Friedrich Wilhelm Hans Ludendorff (Dunowo, 26 May 1873 - Potsdam, 26 June 1941) was a German astronomer and astrophysicist.
The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
The International Astronomical Union (IAU) established a Working Group on Star Names (WGSN) in May 2016 to catalog and standardize proper names for stars for the international astronomical community.
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.
The International Year of Astronomy (IYA2009) was a year-long celebration of astronomy that took place in 2009 to coincide with the 400th anniversary of the first recorded astronomical observations with a telescope by Galileo Galilei and the publication of Johannes Kepler's Astronomia nova in the 17th century.
Julian day is the continuous count of days since the beginning of the Julian Period and is used primarily by astronomers.
Latinisation or Latinization is the practice of rendering a non-Latin name (or word) in a Latin style.
In astronomy, a light curve is a graph of light intensity of a celestial object or region, as a function of time.
Light pollution, also known as photopollution, is the presence of anthropogenic light in the night environment.
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.
Margherita Hack, Knight Grand Cross OMRI (Florence, 12 June 1922 – Trieste, 29 June 2013) was an Italian astrophysicist and scientific disseminator.
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
The National Science Foundation (NSF) is a United States government agency that supports fundamental research and education in all the non-medical fields of science and engineering.
Neptune is the eighth and farthest known planet from the Sun in the Solar System.
The Net mansion is one of the Twenty-eight mansions of the Chinese constellations.
New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.
New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.
In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.
Nu Aurigae, Latinized from ν Aurigae, is the Bayer designation for a star in the northern constellation of Auriga.
Otto Struve (August 12, 1897 – April 6, 1963) was a Russian-American astronomer.
Procyon, also designated Alpha Canis Minoris (α Canis Minoris, abbreviated Alpha CMi, α CMi), is the brightest star in the constellation of Canis Minor.
Sir Robert Wilson (16 April 1927 – 2 September 2002) CBE, FRS, was the son of a Durham miner.
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.
Solar radius is a unit of distance used to express the size of stars in astronomy.
A spectral energy distribution (SED) is a plot of energy versus frequency or wavelength of light (not to be confused with a 'spectrum' of flux density vs frequency or wavelength).
Star Names: Their Lore and Meaning is an 1899 book by Richard Hinckley Allen that discusses the names of stars, constellations, and their histories.
A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction.
Statistics is a branch of mathematics dealing with the collection, analysis, interpretation, presentation, and organization of data.
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
Su-Shu Huang (黃授書, April 16, 1915 – September 15, 1977) was a Chinese-born American astrophysicist.
The Sun is the star at the center of the Solar System.
Supergiants are among the most massive and most luminous stars.
Tau Aurigae, Latinized from τ Aurigae, is the Bayer designation for a star in the northern constellation Auriga.
Thomas Hyde (29 June 1636 – 18 February 1703) was an English orientalist.
Mīrzā Muhammad Tāraghay bin Shāhrukh (میرزا محمد طارق بن شاہ رخ, میرزا محمد تراغای بن شاہ رخ), better known as Ulugh Beg (March 22, 1394 in Sultaniyeh, Persia – October 27, 1449, Samarkand), was a Timurid ruler as well as an astronomer, mathematician and sultan.
Upsilon Aurigae, Latinized from υ Aurigae, is the Bayer designation for a star in the northern constellation of Auriga.
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates.
The Washington Double Star Catalog, or WDS, is a catalog of double stars, maintained at the United States Naval Observatory.
A yellow supergiant star is a star, generally of spectral type F or G, having a supergiant luminosity class (e.g. Ia or Ib).
Abu Yahya Zakariya' ibn Muhammad al-Qazwini (أبو یحیی زکریاء بن محمد القزویني) or Zakarya Qazvini (Persian: زکریا قزوینی) ‎(1203–1283) was a Persian physician, astronomer, geographer and proto-science fiction writer of Arab descent.
Zeta Aurigae (ζ Aurigae, abbreviated Zet Aur, ζ Aur), is a binary star in the northern constellation of Auriga.
2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.
2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.
26 Aurigae is a binary star in the constellation Auriga.