Aldebaran is the brightest star in which constellation
"pointed out that ""Aldebaran"" is named after the brightest star in the constellation of Taurus. In the Arabic language, the title translates to ""the follower"" as it follows the Pleiades cluster of stars, and the song is based on future Celtic people ""passing Aldebaran on their journey to new territories, continuing their migratory pattern which was so predominant in their early history."" The track was recorded in its entirety at Aigle Studio as Nicky expressed the difficulty in having to recreate the recording process elsewhere. ""The Celts"" was used as the main title theme for the television series. ""Boadicea"", which"
"the general direction of this constellation. The Beta Taurid meteor shower occurs during the months of June and July in the daytime, and is normally observed using radio techniques. Between 18 and 29 October, both the Northern Taurids and the Southern Taurids are active; though the latter stream is stronger. However, between November 1 and 10, the two streams equalize. The brightest member of this constellation is Aldebaran, an orange-hued, spectral class K5 III giant star. Its name derives from """", Arabic for ""the follower"", probably from the fact that it follows the Pleiades during the nightly motion of the"
"of its proximity to the Solar System. In contrast, the other bright stars of the constellation are stars of great distance and high luminosity. At magnitude 1.5, Epsilon Canis Majoris (Adhara) is the second-brightest star of the constellation and the brightest source of extreme ultraviolet radiation in the night sky. Next in brightness are the yellow-white supergiant Delta (Wezen) at 1.8, the blue-white giant Beta (Mirzam) at 2.0, blue-white supergiants Eta (Aludra) at 2.4 and Omicron at 3.0, and white spectroscopic binary Zeta (Furud), also at 3.0. The red hypergiant VY Canis Majoris is one of the largest stars known,"
"until it reaches the termination shock boundary with the hot, ionized interstellar medium that dominates the Local Bubble, forming a roughly spherical astrosphere with a radius of around 1,000 AU, centered on Aldebaran. Aldebaran is one of the easiest stars to find in the night sky, partly due to its brightness and partly due to its spatial relation to one of the more noticeable asterisms in the sky. If one follows the three stars of Orion's belt from left to right (in the Northern Hemisphere) or right to left (in the Southern), the first bright star found by continuing that"
"Achernar Achernar is the name of the primary (or 'A') component of the binary system designated Alpha Eridani (α Eridani, abbreviated Alpha Eri, α Eri), which is the brightest 'star' or point of light in, and lying at the southern tip of, the constellation of Eridanus, and the tenth-brightest in the night sky. The two components are designated Alpha Eridani A (the primary) and B (the secondary, also known informally as Achernar B). As determined by the Hipparcos astrometry satellite, it is approximately from the Sun. Of the ten apparent brightest stars in the night-time sky, Alpha Eridani is the"
"Alpha Fornacis Alpha Fornacis (α Fornacis, abbreviated Alpha For, α For), also designated 12 Eridani, is a binary star system in the southern constellation of Fornax. It is the brightest star in the constellation and the only one brighter than magnitude 4.0. Based on parallax measurements obtained during the Hipparcos mission, it is approximately 46 light-years (14 parsecs) distant from the Sun. Its two components are designated Alpha Fornacis A (also named Dalim) and B. ""α Fornacis"" (Latinised to ""Alpha Fornacis"") is the system's Bayer designation, ""12 Eridani"" its Flamsteed designation. The designations of the two components as ""Alpha Fornacis"
"(not shown on the main map as it is located below the map's southeastern corner, north is up). Instead, the brightest star is Epsilon Sagittarii (ε Sgr) (""Kaus Australis,"" or ""southern part of the bow""), at magnitude 1.85. Sigma Sagittarii (σ Sgr) (""Nunki"") is the constellation's second-brightest star at magnitude 2.08. Nunki is a B2V star approximately 260 light years away. ""Nunki"" is a Babylonian name of uncertain origin, but thought to represent the sacred Babylonian city of Eridu on the Euphrates, which would make Nunki the oldest star name currently in use. Zeta Sagittarii (ζ Sgr) (""Ascella""), with apparent"
"Antares Antares (), also designated Alpha Scorpii (α Scorpii, abbreviated Alpha Sco, α Sco), is on average the fifteenth-brightest star in the night sky, and the brightest star in the constellation of Scorpius. Distinctly reddish when viewed with the naked eye, Antares is a slow irregular variable star that ranges in brightness from apparent magnitude +0.6 to +1.6. Often referred to as ""the heart of the scorpion"", Antares is flanked by Sigma and Tau Scorpii in the center of the constellation. Classified as a red supergiant of spectral type M1.5Iab-Ib, Antares is the brightest, most massive, and most evolved stellar"
"(see ""The Stars My Destination"" by Alfred Bester, Demon Princes by Jack Vance, and Star Trek below). Rigel is the brightest star in the constellation Orion and the sixth brightest star in the sky, with an apparent magnitude of 0.18. Although it has the Bayer designation ""Beta,"" it is almost always brighter than Alpha Orionis (Betelgeuse). Whereas the latter star represents the right shoulder of the Hunter, Rigel represents his left foot. It is the first star counterclockwise from Sirius in the Winter Hexagon, and is followed in turn by Aldebaran. The star's name is a contraction of ""Riǧl Ǧawza"
"line is Aldebaran. Since the star is located (by chance) in the line of sight between the Earth and the Hyades, it has the appearance of being the brightest member of the more scattered Hyades open star cluster that makes up the bull's-head-shaped asterism; however, the star cluster is actually more than twice as far away, at about 150 light years. Aldebaran is 5.47 degrees south of the ecliptic and can be occulted by the Moon. Such occultations occur when the Moon's ascending node is near the autumnal equinox. A series of 49 occultations occurred starting on 29 January 2015"
"there are 71 stars brighter than or equal to apparent magnitude 6.5. Just shading Alpha Arae, Beta Arae is the brightest star in the constellation. It is an orange-hued star of spectral type K3Ib-IIa that has been classified as a supergiant or bright giant, that is around 650 light-years from Earth. It is around 8.21 times as massive and 5,636 times as luminous as the Sun. At apparent magnitude 2.85, this difference in brightness between the two is undetectable by the unaided eye. Close to Beta Arae is Gamma Arae, a blue-hued supergiant of spectral type B1Ib. Of apparent magnitude"
"Altair Altair () (from Arabic """"al-ṭā'ir"""") also designated Alpha Aquilae (α Aquilae, abbreviated Alpha Aql, α Aql), is the brightest star in the constellation of Aquila and the twelfth brightest star in the night sky. It is currently in the G-cloud—a nearby interstellar cloud, which is an accumulation of gas and dust. Altair is an A-type main sequence star with an apparent visual magnitude of 0.77 and is one of the vertices of the asterism known as the Summer Triangle (the other two vertices are marked by Deneb and Vega). It is 16.7 light-years (5.13 parsecs) from the Sun and"
"are defined by a 17-sided polygon. In the equatorial coordinate system, the right ascension coordinates of these borders lie between and , while the declination coordinates are between and . The International Astronomical Union (IAU) adopted the three-letter abbreviation ""Lyr"" for the constellation in 1922. The brightest and by far the most well-known star in the constellation is Vega, a main-sequence star of spectral type A0Va. Only 7.7 parsecs distant, is a Delta Scuti variable, varying between magnitudes −0.02 and 0.07 over 0.2 days. On average, it is the second-brightest star of the northern hemisphere (after Arcturus) and the fifth-brightest"
"visual companion stars, WDS 19508+0852B, C, and D. Component B is not physically close to A but merely appears close to it in the sky. Altair Altair () (from Arabic """"al-ṭā'ir"""") also designated Alpha Aquilae (α Aquilae, abbreviated Alpha Aql, α Aql), is the brightest star in the constellation of Aquila and the twelfth brightest star in the night sky. It is currently in the G-cloud—a nearby interstellar cloud, which is an accumulation of gas and dust. Altair is an A-type main sequence star with an apparent visual magnitude of 0.77 and is one of the vertices of the asterism"
"remain in use, likely because of their proximity to the north celestial pole. Within the constellation's borders, there are 39 stars brighter than or equal to apparent magnitude 6.5. Marking the Little Bear's tail, Polaris, or Alpha Ursae Minoris, is the brightest star in the constellation, varying between apparent magnitude 1.97 and 2.00 over a period of 3.97 days. Located around 432 light-years away from Earth, it is a yellow-white supergiant that varies between spectral types F7Ib and F8Ib, and has around 6 times the Sun's mass, 2,500 times its luminosity and 45 times its radius. Polaris is the brightest"
"11th millennia, when it will be visible as far north as Germany and southern England. Achernar Achernar is the name of the primary (or 'A') component of the binary system designated Alpha Eridani (α Eridani, abbreviated Alpha Eri, α Eri), which is the brightest 'star' or point of light in, and lying at the southern tip of, the constellation of Eridanus, and the tenth-brightest in the night sky. The two components are designated Alpha Eridani A (the primary) and B (the secondary, also known informally as Achernar B). As determined by the Hipparcos astrometry satellite, it is approximately from the"
"the right ascension coordinates of these borders lie between and , while the declination coordinates are between −45.09° and −56.98°. The whole constellation is visible to observers south of latitude 33°N. Within the constellation's borders, there are 57 stars brighter than or equal to apparent magnitude 6.5. With a magnitude of 3.5, Alpha Telescopii is the brightest star in the constellation. It is a blue-white subgiant of spectral type B3IV which lies around 250 light-years away. It is radiating nearly 800 times the Sun's luminosity, and is estimated to be 5.2±0.4 times as massive and have 3.3±0.5 times the Sun's"
"so entered in the IAU Catalog of Star Names. The catalogue of star names lists ""Capella"" as applying to the star α Aurigae Aa. Capella was the brightest star in the night sky from 210,000 years ago to 160,000 years ago, at about −1.8 in apparent magnitude. At −1.1, Aldebaran was brightest before this period; it and Capella were situated rather close to each other in the sky and approximated boreal pole stars at the time. Capella is thought to be mentioned in an Akkadian inscription dating to the 20th century BC. Its symbolism as a goat dates back to"
"Alpha Vulpeculae Alpha Vulpeculae (α Vulpeculae, abbreviated Alf Vul, α Vul), also named Anser, is the brightest star in the constellation of Vulpecula. It is approximately 297 light-years from Earth. It forms a wide optical binary with 8 Vulpeculae. Alpha Vulpeculae is a red giant of spectral class M1 and has apparent magnitude +4.4. It has been analysed as a member of the Arcturus stream, a group of stars with high proper motion and metal-poor properties thought to be the remnants of a small galaxy consumed by the Milky Way. ""α Vulpeculae"" (Latinised to ""Alpha Vulpeculae"") is the system's Bayer"
"expanded radius. Aldebaran is a slightly variable star, of the slow irregular variable type ""LB"". It varies by about 0.2 in apparent magnitude from 0.75 to 0.95. With a near-infrared J band magnitude of −2.1, only Betelgeuse (−2.9), R Doradus (−2.6), and Arcturus (−2.2) are brighter. The photosphere shows abundances of carbon, oxygen, and nitrogen that suggest the giant has gone through its first dredge-up stage—a normal step in the evolution of a star into a red giant during which material from deep within the star is brought up to the surface by convection. With its slow rotation, Aldebaran lacks"
"Alpha Andromedae Alpha Andromedae (α Andromedae, abbreviated Alpha And or α And), also named Alpheratz, is located 97 light-years from the Sun and is the brightest star in the constellation of Andromeda. Located immediately northeast of the constellation of Pegasus, it is the upper left star of the Great Square of Pegasus. Although it appears to the naked eye as a single star, with overall apparent visual magnitude +2.06, it is actually a binary system composed of two stars in close orbit. The chemical composition of the brighter of the two stars is unusual as it is a mercury-manganese star"
"YY Geminorum. Castor (star) Castor, also designated Alpha Geminorum (α Geminorum, abbreviated Alpha Gem, α Gem) is the second-brightest point of light in the constellation of Gemini and one of the brightest in the night sky. It appears singular to the naked eye, but it is actually a sextuple star system in three binary pairs made up of the stars Castor Aa, Castor Ab, Castor Ba, Castor Bb, Castor Ca, and Castor Cb. Although it has the Bayer designation ""alpha"", it is fainter than Beta Geminorum, Pollux. Castor was recorded as a double star in 1718 by James Pound. It"
"of names approved by the WGSN; which included ""Arcturus"" for this star. It is now so entered in the IAU Catalog of Star Names. With an apparent visual magnitude of −0.05, Arcturus is the brightest star in the northern celestial hemisphere and the fourth-brightest star in the night sky, after Sirius (−1.46 apparent magnitude), Canopus (−0.72) and Alpha Centauri AB (−0.27). However, Alpha Centauri AB is a binary star, whose unresolved components to the naked eye are both fainter than Arcturus. This makes Arcturus the third-brightest individual star, just ahead of Alpha Centauri A, whose apparent magnitude is −0.01. The"
"Castor (star) Castor, also designated Alpha Geminorum (α Geminorum, abbreviated Alpha Gem, α Gem) is the second-brightest point of light in the constellation of Gemini and one of the brightest in the night sky. It appears singular to the naked eye, but it is actually a sextuple star system in three binary pairs made up of the stars Castor Aa, Castor Ab, Castor Ba, Castor Bb, Castor Ca, and Castor Cb. Although it has the Bayer designation ""alpha"", it is fainter than Beta Geminorum, Pollux. Castor was recorded as a double star in 1718 by James Pound. It may have"
"a complete revolution in approximately 14 hours, close to its breakup velocity. Alpha Coronae Australis Alpha Coronae Australis (α Coronae Australis, abbreviated Alf CrA, α CrA), also named Meridiana, is the brightest star in the constellation of Corona Australis and is located about 125 light-years from Earth. ""α Coronae Australis"" (Latinised to ""Alpha Coronae Australis"") is the star's Bayer designation. It is the only star in the constellation with a traditional proper name, ""Alphekka Meridiana"" (Latin for 'Alphekka South'), after ""Alphecca"", the brightest star in the constellation Corona Borealis. The name ""Alphecca"" or ""Alphekka"" is Arabic, short for نير الفكّة"
"Thuban Thuban, also designated Alpha Draconis (α Draconis, abbreviated Alpha Dra, α Dra), is a star (or star system) in the constellation of Draco. A relatively inconspicuous star in the night sky of the Northern Hemisphere, it is historically significant as having been the north pole star from the 4th to 2nd millennium BC. Even though Johann Bayer gave Thuban the designation Alpha, its apparent magnitude of 3.65 means it is 3.7 times fainter than the brightest star in the constellation, Gamma Draconis (Eltanin), whose apparent magnitude is 2.24. ""α Draconis"" (Latinised to ""Alpha Draconis"") is the star's Bayer designation."
"relatively bright stars for which it is named. The four are often identified as A, B, C, and D in order of increasing right ascension. The brightest of the four stars is C, or Theta Orionis C, with an apparent magnitude of 5.13. Both A and B have been identified as eclipsing binaries. Infrared images of the Trapezium are better able to penetrate the surrounding clouds of dust, and have located many more stellar components. About half the stars within the cluster have been found to contain evaporating circumstellar disks, a likely precursor to planetary formation. In addition, brown dwarfs"
"notably Deneb Kaitos, the brightest star in the constellation of Cetus; Deneb Algedi, the brightest star in Capricornus; and Denebola, the second brightest star in Leo. All these stars are referring to the tail of the animals that their respective constellations represent. ""Denebadigege"" was used in the ""Alfonsine Tables"", other variants include ""Deneb Adige"", ""Denebedigege"" and ""Arided"". This latter name was derived from ""Al Ridhādh"", a name for the constellation. Johann Bayer called it ""Arrioph"", derived from ""Aridf"" and ""Al Ridf"", 'the hindmost' or ""Gallina"". German poet and author Philippus Caesius termed it ""Os rosae"", or ""Rosemund"" in German, or"
"designation. It bore the traditional name ""Anser"", derived from when the constellation had the name ""Vulpecula cum Ansere"" 'the little fox with the goose'. In 2016, the IAU organized a Working Group on Star Names (WGSN) to catalog and standardize proper names for stars. The WGSN approved the name ""Anser"" for this star on 30 June 2017 and it is now so included in the List of IAU-approved Star Names. Alpha Vulpeculae Alpha Vulpeculae (α Vulpeculae, abbreviated Alf Vul, α Vul), also named Anser, is the brightest star in the constellation of Vulpecula. It is approximately 297 light-years from Earth."
"Deneb Deneb (), also designated α Cygni (Latinised alpha Cygni, abbreviated Alpha Cyg, α Cyg), is the brightest star in the constellation of Cygnus, the swan. It is one of the vertices of the asterism known as the Summer Triangle and forms the 'head' of the Northern Cross. It is the 19th brightest star in the night sky, with an apparent magnitude of 1.25. A blue-white supergiant, Deneb is also one of the most luminous stars. However, its exact distance (and hence luminosity) has been difficult to calculate; it is estimated to be somewhere between 55,000 and 196,000 times as"
"the constellation, as adopted by the International Astronomical Union in 1922, is 'Cir'. Circinus is a faint constellation, with only one star brighter than fourth magnitude. Alpha Circini, a white main sequence star with an apparent magnitude of 3.19, is 54 light-years away and 4° south of Alpha Centauri. Not only the brightest star in the constellation, it is also the brightest example of a rapidly oscillating Ap (RoAp) star in the night sky. It has the unusual spectral type A7 Vp SrCrE, showing increased emissions of strontium, chromium and europium. Stars of this type have oddly localised magnetic fields"
"with the C and D component stars gravitationally bound to and co-orbiting each other. These co-orbiting stars have been shown to be located far beyond Aldebaran and are members of the Hyades star cluster. As with the rest of the stars in the cluster they do not physically interact with Aldebaran in any way. In 1993, radial velocity measurements of Aldebaran, Arcturus and Pollux showed that Aldebaran exhibited a long-period radial velocity oscillation, which could be interpreted as a ""substellar companion"". The measurements for Aldebaran implied a companion with a minimum mass 11.4 times that of Jupiter in a 643-day"
"Alpha Coronae Australis Alpha Coronae Australis (α Coronae Australis, abbreviated Alf CrA, α CrA), also named Meridiana, is the brightest star in the constellation of Corona Australis and is located about 125 light-years from Earth. ""α Coronae Australis"" (Latinised to ""Alpha Coronae Australis"") is the star's Bayer designation. It is the only star in the constellation with a traditional proper name, ""Alphekka Meridiana"" (Latin for 'Alphekka South'), after ""Alphecca"", the brightest star in the constellation Corona Borealis. The name ""Alphecca"" or ""Alphekka"" is Arabic, short for نير الفكّة ""nayyir al-fakka"" ""the bright (star) of the broken (ring of stars)"". In"