on peut la voir a l'oeil nu ? However, no direct evidence of this companion has been found, leading to speculation that it might be a white dwarf or other degenerate star. The Nereids were the 50 sea nymphs fathered by the Titan Nereus. Dans la mythologie grecque, Cassiopée (en grec ancien Κασσιόπεια / Kassiópeia), épouse de Céphée, roi d'Éthiopie, prétendit un jour que sa fille Andromède était plus belle que les Néréides, nymphes de la mer pourvues d'une beauté incroyable.. Outrées par cette insolence, les nymphes demandèrent à Poséidon, dieu de la mer, de les venger de cette insulte. Though they do not appear in Andromeda, both dwarf galaxies are gravitationally bound to the far larger Andromeda Galaxy. Messier 103 (NGC 581) – Atlas Image mosaic courtesy of 2MASS, UMass, IPAC-Caltech, NASA, NSF. The star rotates very rapidly and bulges outward along the equator. They are usually giants or main sequence stars of spectral types ranging between A0 and F5. The sea god obliged and sent Cetus, a sea monster represented by the constellation Cetus (the Whale), located in the same region of the sky, to ravage the coast of Cepheus’ kingdom. The star is a known X-ray source. Caph has a mean apparent magnitude of 2.27. The cloud of material ejected in the explosion is about 10 light years across and is expanding at the rate of 4,000-6,000 km/s. Its most prominent member is an orange-hued star of magnitude 8.0 near the cluster's edge. Beta Cassiopeiae, or Caph, is either a subgiant or giant star belonging to the spectral type F2 III-IV, approximately 54.5 light years distant. This asterism is formed by five bright stars; Epsilon, Ruchbah (Delta), Gamma, Schedar (Alpha Cassiopeiae) and Caph (Beta Cassiopeiae). Gamma Cassiopeiae is a spectroscopic binary star, an optical double with a magnitude 11 companion about two arc seconds away, one with a mass comparable to that of the Sun. V509 Cassiopeiae is another G-type hypergiant, at least 7,800 light years distant. [30], AO Cassiopeiae is a binary system composed of an O8 main sequence star and an O9.2 bright giant that respectively weigh anywhere between 20.30 and 57.75 times and 14.8 and 31.73 times the mass of the Sun. Cassiopée constellation. B Cassiopeiae was in fact the supernova known as Tycho's Supernova. Alpha Cassiopeiae was called Poloahilani, Beta Cassiopeiae was called Polula, and Gamma Cassiopeiae was called Mulehu. Psi Cassiopeiae is a triple star 193 light-years from Earth. Objects of magnitude 6.5 are among the faintest visible to the unaided eye in suburban-rural transition night skies. NGC 7789 is an open star cluster, approximately 7,600 light years distant. The primary is a yellow-hued star of magnitude 3.5 and the secondary is a red-hued star of magnitude 7.5. Cette disposition lui vaut également parfois l'appellation de « Trône de la Reine », elle est également connue sous le nom plus commun de « Chaise », ou plus ancien de « Cerva ». If the Earth's Sun could be observed from α Centauri, the closest star to the Solar System, it would be visible in Cassiopeia as a yellow-white 0.5 magnitude star, far brighter than any of the other stars of the constellation. Zeta Cassiopeiae is classified as a SPB variable star (Slow Pulsating B star), the first one of its kind discovered to have a magnetic field. In mythology, Cassiopeia was the wife of King Cepheus (represented by the neighbouring constellation Cepheus in the sky) of Ethiopia. The constellation of Cassiopeia is named after a mythical queen from ancient Greece. Cassiopeia is located in the northern sky and from latitudes above 34°N it is visible year-round. [22], Rho Cassiopeiae is a semi-regular pulsating variable yellow hypergiant, among the most luminous stars in the galaxy at approximately 500,000 L☉. Christophe Guillarmé Inspiré par la légende de Cassiopé, Christophe Guillarmé en a fait le thème de sa collection prêt-à-porter automne-hiver 2020/2021. M52, once described as a "kidney-shaped" cluster, contains approximately 100 stars and is 5200 light-years from Earth. Its most prominent member is actually a closer, superimposed double star; it consists of a 7th-magnitude primary and 10th-magnitude secondary. She is usually depicted on her throne, still combing her hair. The nebula is 9,500 light years from Earth. It undergoes enormous outbursts roughly every 50 years, resulting in change in luminosity. It is in the range from 2.20 to 2.23 magnitudes. It has been reported to show eclipses of less than 0.1 magnitudes with a period of 2 years and 1 month. IC 10 is an irregular galaxy that is the closest known starburst galaxy and the only one in the Local Group of galaxies. La Constellation Livresque de Cassiopée ... "Le clocher de Noël et autres crimes impossibles" présenté par Roland Lacourbe. The cluster was discovered in 1787 by William Herschel. The main stars of Cassiopeia make its tail, Andromeda and Triangulum form its body, and Aries makes its head. It is 13 arc minutes (19 light years) in diameter. It is approximately 11,650 light years distant and one of the most luminous stars known. Philippe. [5], Another Arab constellation that incorporated the stars of Cassiopeia was the Camel. Cassiopée est une des 88 constellations du ciel, visible dans l' hémisphère nord. The star was used as a navigational reference point by astronauts. The Perseid meteor shower is associated with the constellation. celestron.com. Iota Cassiopeiae is a triple star 142 light-years from Earth. Cauta cuvinte şi fraze milioane în toate limbile. [18], Beta Cassiopeiae, or Caph (meaning "hand"), is a white-hued star of magnitude 2.3, 54.7 ± 0.3 light-years from Earth. The neighboring constellations are Andromeda, Camelopardalis, Cepheus, Lacerta, and Perseus. It is easily recognizable due to its distinctive 'W' shape, formed by five bright stars. Cassiopeia is a large constellation located in the northern sky. La pointe centrale du W pointe très approximativement en direction de l'étoile polaire, α Ursae Minoris. 2011-06-15 23-50-00-stars.jpg 4.216 × 5.425; 22,47 MB. Cassiopée est une des 88 constellations visible dans l'hémisphère nord. In spite of the distance, Rho Cassiopeiae is visible to the naked eye. Le styliste commente son défilé, sorte de voyage intersidéral. The orbital period is roughly 204 days. Epsilon Cassiopeiae is a bright blue-white B-class giant, approximately 440 light years distant. In France, she was portrayed as having a marble throne and a palm leaf in her left hand, holding her robe in her right hand. The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "Cas". celestron.com. Преглед на milions думи и фрази на всички езици. Upsilon was later found to be two stars and labelled Upsilon1 and Upsilon2 by John Flamsteed. [34], NGC 457 is another open cluster in Cassiopeia, also called the E.T. Cassiopeia (listen) is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivaled beauty. He photographed the galaxy using the Crossley telescope (36-inch/910mm), the reflecting telescope located at Lick Observatory in California. NGC 185 is a magnitude 9.2 elliptical galaxy of type E0, 2 million light-years away. Rho Cassiopeiae is 550,000 times brighter than the Sun, with an absolute magnitude of -7.5. Messier 52 is an open cluster, approximately 5,000 light years distant. The primary dominates, an orange-hued giant of magnitude 2.2, 228 ± 2 light-years from Earth. It also hosts the red supergiant PZ Cassiopeiae, which is one of the largest known stars with an estimate of 1,190–1,940 R☉ and is also a semiregular variable. [5], Other cultures see a hand or moose antlers in the pattern. The first, designated 3C 10 or just Tycho's Supernova Remnant, is the aftermath of the supernova called Tycho's Star. Delta Scuti variables, which are also known as Dwarf Cepheids, Al Velae or Al Velorum stars, typically show fluctuations in luminosity due to both radial and non-radial pulsations on their surface. It has around 450 times the Sun's diameter and 17 times its mass, having begun life 45 times as massive as the Sun. Numele tradiţional pentru Alfa Casiopeea, cea mai sudică stea a Constelaţiei Casiopeea. e-POP Becomes Fourth Member of Swarm Constellation. The primary is a white-hued star of magnitude 4.5 and an α2 Canum Venaticorum variable, the secondary is a yellow-hued star of magnitude 6.9, and the tertiary is a star of magnitude 8.4. A rich section of the Milky Way runs through Cassiopeia, stretching from Perseus towards Cygnus, and it contains a number of open clusters, young luminous galactic disc stars, and nebulae. Traité De Maastricht Définition, O último Segredo De Fátima, News Angers Sco Mercato Minute, 12 Place Du Panthéon 75231 Paris Cedex 05, Quand Partir à Istanbul, Synonyme De Examine, Citation Ex Oublier, " />

Касиопея превод на речника български френски на Glosbe, онлайн речник, безплатно. magnitude 2 donc c'est carrément plus brillant que toutes les étoiles de Persé, des amateurs signalent la voir sans problème même en plein centre ville dans de grandes aglomérations. Eta Cassiopeiae is the nearest star in Cassiopeia to our solar system, lying only 19.4 light years away. Perseus and Andromeda were later married. Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivaled beauty.Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today.It is easily recognizable due to its distinctive 'W' shape, formed by five bright stars. _astrorel_, Lyon. NGC 185 is a dwarf spheroidal galaxy, approximately 2.08 million light years from Earth. [19] It is a Delta Scuti variable with a small amplitude and period of 2.5 hours. It contains a large amount of ionised atomic hydrogen (H II) which is lit by the ultraviolet light of young, hot, blue stars. [16] With a luminosity of around 771 times that of the Sun, it has swollen and cooled after exhausting its core hydrogen over its 100 to 200 million-year lifespan, spending much of it as a blue-white B-type main-sequence star. Cassiopeia belongs to the Perseus family of constellations, along with Andromeda, Auriga, Cepheus, Cetus, Lacerta, Pegasus, Perseus, and Triangulum. One look at Medusa’s head turned them all into stone. Ptolemy cataloged Cassiopeia and other constellations in the Perseus family in the 2nd century. Amazon.de/musik: Various – Der Ruhe Entgegen jetzt kaufen. За десети път ви казвам, че е в Касиопея. Ruchbah – δ Cassiopeiae (Delta Cassiopeiae). Cassiopeia includes V509 Cassiopeiae, a second example of the extremely rare yellow hypergiants, which is around 400,000 times as luminous as the Sun and 14 times as massive,[28] as well as 6 Cassiopeiae which is a hotter white hypergiant. Andromeda was then rescued by the hero Perseus, whom she later married. It was discovered by the British astronomer Caroline Herschel in 1783. Its traditional name is derived from the Arabic kaf, which means “palm” (i.e. The star’s traditional name, Schedar, is derived from the Arabic şadr, which means “breast.” The name refers to the star’s position, marking Cassiopeia’s heart. It has a green-hued primary of magnitude 5.0 and a blue-hued secondary of magnitude 7.3. Anmelden Konto und Listen Anmelden Konto und Listen Bestellungen Entdecken Sie Prime Einkaufs-wagen Every day, Safran Electronics & Defense helps airlines, operators and Original Equipment Manufacturers by collecting, processing and analysing an increasing amount of flight data. As a result of this location in the Zone of Avoidance, both are surprisingly faint despite both being within 10 million light-years away (Maffei 2 is below the range of most amateur telescopes). The star belongs to the spectral class G2Ia0e. Cassiopeia is a constellation found in the northern sky. This new four-year partnership will allow e-POP to collect valuable space weather data at a rate 3-4 times greater than has been done previously. celestron.com. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. Cluster, the Owl Cluster, and Caldwell 13. Cassiopeia contains several notable deep sky objects, among them the open clusters Messier 52 and Messier 103, the Heart Nebula and the Soul Nebula, the supernova remnant Cassiopeia A, the star-forming cloud popularly known as the Pacman Nebula, and the White Rose Cluster. It was the last object Charles Messier entered into his catalogue. [37], Cassiopeia also contains part of the closest galaxy group to our Local Group, the IC 342/Maffei Group. The galaxy is classified as a type 2 Seyfert galaxy. As a result of its fast spinning, a “decretion” disk of lost mass and material forms around the star, which causes the fluctuations in luminosity. Folk / Folklore, Pop The age of the cluster is estimated to be about 25 million years. Rho Cassiopeiae is suspected to already have exploded as a supernova because it has used up most of its nuclear fuel, but if this is the case, the light from the explosion has yet to reach us. It has an active galactic nucleus (AGN). NGC 147 is another dwarf spheroidal galaxy in Cassiopeia, approximately 2.53 million light years distant. Cassiopeia, the myth goes, was condemned to circle the celestial pole forever, and spends half the year upside down in the sky as punishment for her vanity. In 1572, Tycho Brahe's supernova flared brightly in Cassiopeia. The cluster was discovered by Charles Messier in 1774. The stars of NGC 457, arrayed in chains, are approximately 10,000 light-years from Earth. [27] Theta Cassiopeiae, named Marfak, is a suspected variable star whose brightness changes by less than a tenth of a magnitude. It has an apparent magnitude of 3.67. Gamma Cassiopeiae has a minimum magnitude of 3.0 and a maximum magnitude of 1.6, but is generally near magnitude 2.2, with unpredictable fades and brightenings. It is the remnant of a supernova that took place approximately 300 years ago (as observed now from Earth; it is 10,000 light-years away),[34] and has the distinction of being the strongest radio source observable outside the Solar System. It is famous for its distinctive “W” shape. NGC 281 is an H II region, a large gas cloud in which star formation has recently taken place. We are pleased to announce that CASSIOPE/e-POP has become part of the European Space Agency’s (ESA) Swarm mission, via the Third Party Mission programme at ESA. It was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy. Cassiopeia was the wife of King Cepheus of Aethiopia and mother of Princess Andromeda. At magnitude 2.2, Alpha Cassiopeiae, or Schedar, is generally the brightest star in Cassiopeia, though it is occasionally outshone by the variable Gamma Cassiopeiae, which has reached magnitude 1.6. Sigma Cassiopeiae is a binary star 1500 light-years from Earth. Zum Hauptinhalt wechseln. The system is 19 light-years from Earth. Cassiopeia A is a supernova remnant. Les sommets en sont, d'est en ouest, ε, δ, γ, α et β Cassiopeiae, les cinq étoiles les plus brillantes de la constellation. Messier 103 is another open cluster in Cassiopeia. It was named after Cassiopeia, the vain and boastful queen in Greek mythology. The only Delta Scuti variable brighter than Caph is Altair, the brightest star in the constellation Aquila and 12th brightest star in the sky. Cassiopée (constellation) Касиопея (съзвездие) Pour la dixième fois, c'est sur Cassiopée. [25] It is a runaway star, moving at around 2.5 million mph relative to its neighbors (1,100 kilometers per second). Poseidon was married to one of the nymphs, Amphitrite. The amount of X-ray radiation that it emits is 10 times higher than that of other B or Be class stars. It is also more distant, at 8200 light-years from Earth. NGC 457 is fairly rich; it is a Shapley class e and Trumpler class I 3 r cluster. It lies approximately 10,000 light years from Earth and contains 172 stars. [13], The German cartographer Johann Bayer used the Greek letters Alpha through Omega, and then A and B, to label the most prominent 26 stars in the constellation. Messier 52 (NGC 7654) – Atlas Image mosaic courtesy of 2MASS, UMass, IPAC-Caltech, NASA, NSF. Poséidon Nereids s’est plaint de cette impolitesse, puis a envo… Cassiopeia Constellation Map, by IAU and Sky&Telescope magazine. [10][c] High in the northern sky, it is circumpolar (that is, it never sets in the night sky) to viewers in the British Isles, Canada and the northern United States. The shell of matter expelled from the star is moving at 4,000 kilometres (2,500 mi) per second; it has a temperature of 30,000 kelvins on average. Elle est circumpolaire aux latitudes de la France métropolitaine, c'est-à-dire qu'elle ne passe jamais sous l'horizon. Elle fait partie du bras de Persée. It was nicknamed the Pacman Nebula because of its resemblance to the character from the popular video game. I. . There was a fight and Perseus, desperately outnumbered, used the head of Medusa, the monster he had recently slain, to defeat his opponents. Cassiopeia is famous for its distinctive W shape, an asterism formed by five bright stars in the constellation. closer to the zenith) and the W appears inverted. The next seven brightest stars in Cassiopeia are also all confirmed or suspected variable stars, including 50 Cassiopeiae which was not given a Greek letter by Bayer and is a suspected variable with a very small amplitude. Bewertung 0.0, . The constellation is named after Cassiopeia, the queen of Aethiopia. Its luminosity varies between magnitudes 4.75 and 5.5. The system’s brightness varies by 0.05 magnitudes. Dans ce doux pays baigné de Soleil, la reine Cassiopée, très prétentieuse, se proclamait même plus belle u’Aphrodite, la déesse de l’Amour (Vénus). [22], The other prominent open clusters in Cassiopeia are NGC 457 and NGC 663, both of which have about 80 stars. The star is classified as a semi-regular variable. Cepheus turned to an oracle for help and the oracle told him that, in order to appease Poseidon, he and Cassiopeia had to sacrifice their daughter Andromeda to the sea monster. La constellation de Cassiopée Cassiopée (Cassiopeia) , appelée aussi la Chaise ou le Trône , est un une constellation boréale, qui se trouve toujours en opposition à la Grande Ourse , … The cluster was discovered by the French astronomer Pierre Méchain in 1781. The brightest stars in it are two yellow giants of magnitude 7.77 and 8.22. In the (sub)tropics it can be seen at its clearest from September to early November, and at low southern, tropical, latitudes of less than 25°S it can be seen, seasonally, low in the North. It has an apparent magnitude of 10.5. [13] All five are prominent naked eye stars, three are noticeably variable, and a fourth is a suspected low amplitude variable. The Cassiopeia constellation gets its name … Cassiopeia obţinute în dicţionarul română - franceză la Glosbe, dicţionar online, gratis. The galaxies Maffei 1 and Maffei 2 are located just to the south of the Heart and Soul Nebula. The Heart Nebula and the Soul Nebula are two neighboring emission nebulae about 7,500 light-years away. Le nom moderne de ce groupe d’étoiles a été présenté par les anciens Grecs. The Washington Double Star Catalog", "The bow shock of Kappa Cassiopeiae, a massive, hot supergiant", The Deep Photographic Guide to the Constellations: Cassiopeia, Warburg Institute Iconographic Database (over 150 medieval and early modern images of Cassiopeia), https://en.wikipedia.org/w/index.php?title=Cassiopeia_(constellation)&oldid=991136212, Wikipedia articles with WorldCat-VIAF identifiers, Creative Commons Attribution-ShareAlike License, This page was last edited on 28 November 2020, at 13:14. of Alaska, T.A.Rector. Cepheus and Cassiopeia were placed next to each other among the stars, along with Andromeda. [16], Epsilon Cassiopeiae has an apparent magnitude of 3.3. Slightly dimmer and more distant NGC 147 is a magnitude 9.3 elliptical galaxy, like NGC 185 it is an elliptical of type E0; it is 2.3 million light-years from Earth. It is similar to the Sun; a yellow-white G-class hydrogen fusing dwarf, slightly cooler than the Sun with a surface temperature of 5730 Kelvin. The brightest star in the constellation is Schedar, Alpha Cassiopeiae. The star’s other traditional names are al-Sanam al-Nakah and al-Kaff al-Khadib. The Pacman Nebula (NGC 281), photo: X-ray: NASA, CXC, CfA, S.Wolk et al; Optical: NSF, AURA, WIYN, Univ. Nicknamed the W constellation, Cassiopeia is easily recognizable for the prominent W asterism formed by its five brightest stars. It is currently in the process of cooling down and will eventually become a red giant. USS Cassiopeia (AK-75) was a United States Navy Crater-class cargo ship named after the constellation. Two Messier objects, M52 (NGC 7654) and M103 (NGC 581), are located in Cassiopeia; both are open clusters. Prime entdecken Hallo! [8] These include the Lapps, for whom the W of Cassiopeia forms an elk antler. Phi Cassiopeiids are very slow, with an entry velocity of approximately 16.7 kilometers per second. Gamma Cassiopeiae is the central star in the W shape and currently the brightest star in the constellation. [35], Two members of the Local Group of galaxies are in Cassiopeia. Cassiopeia has three stars with known planets and contains two Messier objects: M103 (NGC 581) and M52 (NGC 7654). It is a suspected variable star. Cassiopeia is the 25th largest constellation in the night sky, occupying an area of 598 square degrees. It is the strongest radio source in the sky outside the solar system and was one of the first radio sources to be discovered, in 1947. Click here for Cassiope pictures! Reluctantly, they did so, leaving Andromeda chained to a rock for the monster to find. Cassiopée (mythologie) Dans la mythologie grecque, épouse orgueilleuse de Céphée et mère d'Andromède, reine d'Éthiopie. It has an apparent magnitude of 5.0 and can be seen with binoculars. [5], In Welsh Mythology Llys Dôn (literally "The Court of Dôn") is the traditional Welsh name for the constellation. NGC 663 is both closer, at 8200 light-years from Earth, and larger, at 0.25 degrees in diameter. It exhibits irregular variations in brightness, which ranges between 2.20 magnitudes and 3.40 magnitudes. The constellation was first catalogued by the Greek astronomer Ptolemy in the 2nd century, along with other constellations in the Perseus family (except Lacerta). [28] It has a minimum magnitude of 6.2 and a maximum magnitude of 4.1; its period is approximately 320 days. Cassiopeia is one of the 88 modern constellationswe see today. The constellation hosts some of the most luminous stars known, including the yellow hypergiants Rho Cassiopeiae and V509 Cassiopeiae and white hypergiant 6 Cassiopeiae. Located 410 ± 20 light-years from Earth,[16] it is a hot blue-white star of spectral type B3 III with a surface temperature of 15,680 K. It is 6.5 times as massive and 4.2 times as wide as the Sun, and belongs to a class of stars known as Be stars—rapidly spinning stars that throw off a ring or shell of matter.[23]. Aurélien Deschamps 31 ans, Rhône Astro Photographie The constellation was first catalogued by the Greek astronomer Ptolemy in the 2nd century, along with other constellations in the … La constellation Cassiopée, dans le ciel étoilé du 2 janvier 2011. The star’s traditional name, Ruchbah, comes from the Arabic rukbah, which means “the knee”. Rho Cassiopeiae is about 10,000 light-years from Earth. Située à l'opposé de la Grande ourse par rapport à la polaire, cette figure mythologique de la reine Cassiopée pour les grecs, est trés facile à repérer avec sa forme caractéristique en W ou M suivant la saison. Tycho Brahe's supernova was visible within Cassiopeia, and the star Tycho G is suspected of being the donor of the material that triggered that explosion. Nicknamed the W constellation, Cassiopeia is easily recognizable for the prominent W asterism formed by its five brightest stars. These included Bathsheba, Solomon's mother; Deborah, an Old Testament prophet; and Mary Magdalene, a disciple of Jesus. Its apparent magnitude can be either slightly brighter or dimmer than Caph (Alpha Cassiopeiae), depending on which photometric system is used. regade la constellation de persée (au nord est juste sous le w de cassiopé) j'ai mis une carte sur mon site : [..] > on peut la voir a l'oeil nu ? However, no direct evidence of this companion has been found, leading to speculation that it might be a white dwarf or other degenerate star. The Nereids were the 50 sea nymphs fathered by the Titan Nereus. Dans la mythologie grecque, Cassiopée (en grec ancien Κασσιόπεια / Kassiópeia), épouse de Céphée, roi d'Éthiopie, prétendit un jour que sa fille Andromède était plus belle que les Néréides, nymphes de la mer pourvues d'une beauté incroyable.. Outrées par cette insolence, les nymphes demandèrent à Poséidon, dieu de la mer, de les venger de cette insulte. Though they do not appear in Andromeda, both dwarf galaxies are gravitationally bound to the far larger Andromeda Galaxy. Messier 103 (NGC 581) – Atlas Image mosaic courtesy of 2MASS, UMass, IPAC-Caltech, NASA, NSF. The star rotates very rapidly and bulges outward along the equator. They are usually giants or main sequence stars of spectral types ranging between A0 and F5. The sea god obliged and sent Cetus, a sea monster represented by the constellation Cetus (the Whale), located in the same region of the sky, to ravage the coast of Cepheus’ kingdom. The star is a known X-ray source. Caph has a mean apparent magnitude of 2.27. The cloud of material ejected in the explosion is about 10 light years across and is expanding at the rate of 4,000-6,000 km/s. Its most prominent member is an orange-hued star of magnitude 8.0 near the cluster's edge. Beta Cassiopeiae, or Caph, is either a subgiant or giant star belonging to the spectral type F2 III-IV, approximately 54.5 light years distant. This asterism is formed by five bright stars; Epsilon, Ruchbah (Delta), Gamma, Schedar (Alpha Cassiopeiae) and Caph (Beta Cassiopeiae). Gamma Cassiopeiae is a spectroscopic binary star, an optical double with a magnitude 11 companion about two arc seconds away, one with a mass comparable to that of the Sun. V509 Cassiopeiae is another G-type hypergiant, at least 7,800 light years distant. [30], AO Cassiopeiae is a binary system composed of an O8 main sequence star and an O9.2 bright giant that respectively weigh anywhere between 20.30 and 57.75 times and 14.8 and 31.73 times the mass of the Sun. Cassiopée constellation. B Cassiopeiae was in fact the supernova known as Tycho's Supernova. Alpha Cassiopeiae was called Poloahilani, Beta Cassiopeiae was called Polula, and Gamma Cassiopeiae was called Mulehu. Psi Cassiopeiae is a triple star 193 light-years from Earth. Objects of magnitude 6.5 are among the faintest visible to the unaided eye in suburban-rural transition night skies. NGC 7789 is an open star cluster, approximately 7,600 light years distant. The primary is a yellow-hued star of magnitude 3.5 and the secondary is a red-hued star of magnitude 7.5. Cette disposition lui vaut également parfois l'appellation de « Trône de la Reine », elle est également connue sous le nom plus commun de « Chaise », ou plus ancien de « Cerva ». If the Earth's Sun could be observed from α Centauri, the closest star to the Solar System, it would be visible in Cassiopeia as a yellow-white 0.5 magnitude star, far brighter than any of the other stars of the constellation. Zeta Cassiopeiae is classified as a SPB variable star (Slow Pulsating B star), the first one of its kind discovered to have a magnetic field. In mythology, Cassiopeia was the wife of King Cepheus (represented by the neighbouring constellation Cepheus in the sky) of Ethiopia. The constellation of Cassiopeia is named after a mythical queen from ancient Greece. Cassiopeia is located in the northern sky and from latitudes above 34°N it is visible year-round. [22], Rho Cassiopeiae is a semi-regular pulsating variable yellow hypergiant, among the most luminous stars in the galaxy at approximately 500,000 L☉. Christophe Guillarmé Inspiré par la légende de Cassiopé, Christophe Guillarmé en a fait le thème de sa collection prêt-à-porter automne-hiver 2020/2021. M52, once described as a "kidney-shaped" cluster, contains approximately 100 stars and is 5200 light-years from Earth. Its most prominent member is actually a closer, superimposed double star; it consists of a 7th-magnitude primary and 10th-magnitude secondary. She is usually depicted on her throne, still combing her hair. The nebula is 9,500 light years from Earth. It undergoes enormous outbursts roughly every 50 years, resulting in change in luminosity. It is in the range from 2.20 to 2.23 magnitudes. It has been reported to show eclipses of less than 0.1 magnitudes with a period of 2 years and 1 month. IC 10 is an irregular galaxy that is the closest known starburst galaxy and the only one in the Local Group of galaxies. La Constellation Livresque de Cassiopée ... "Le clocher de Noël et autres crimes impossibles" présenté par Roland Lacourbe. The cluster was discovered in 1787 by William Herschel. The main stars of Cassiopeia make its tail, Andromeda and Triangulum form its body, and Aries makes its head. It is 13 arc minutes (19 light years) in diameter. It is approximately 11,650 light years distant and one of the most luminous stars known. Philippe. [5], Another Arab constellation that incorporated the stars of Cassiopeia was the Camel. Cassiopée est une des 88 constellations du ciel, visible dans l' hémisphère nord. The star was used as a navigational reference point by astronauts. The Perseid meteor shower is associated with the constellation. celestron.com. Iota Cassiopeiae is a triple star 142 light-years from Earth. Cauta cuvinte şi fraze milioane în toate limbile. [18], Beta Cassiopeiae, or Caph (meaning "hand"), is a white-hued star of magnitude 2.3, 54.7 ± 0.3 light-years from Earth. The neighboring constellations are Andromeda, Camelopardalis, Cepheus, Lacerta, and Perseus. It is easily recognizable due to its distinctive 'W' shape, formed by five bright stars. Cassiopeia is a large constellation located in the northern sky. La pointe centrale du W pointe très approximativement en direction de l'étoile polaire, α Ursae Minoris. 2011-06-15 23-50-00-stars.jpg 4.216 × 5.425; 22,47 MB. Cassiopée est une des 88 constellations visible dans l'hémisphère nord. In spite of the distance, Rho Cassiopeiae is visible to the naked eye. Le styliste commente son défilé, sorte de voyage intersidéral. The orbital period is roughly 204 days. Epsilon Cassiopeiae is a bright blue-white B-class giant, approximately 440 light years distant. In France, she was portrayed as having a marble throne and a palm leaf in her left hand, holding her robe in her right hand. The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "Cas". celestron.com. Преглед на milions думи и фрази на всички езици. Upsilon was later found to be two stars and labelled Upsilon1 and Upsilon2 by John Flamsteed. [34], NGC 457 is another open cluster in Cassiopeia, also called the E.T. Cassiopeia (listen) is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivaled beauty. He photographed the galaxy using the Crossley telescope (36-inch/910mm), the reflecting telescope located at Lick Observatory in California. NGC 185 is a magnitude 9.2 elliptical galaxy of type E0, 2 million light-years away. Rho Cassiopeiae is 550,000 times brighter than the Sun, with an absolute magnitude of -7.5. Messier 52 is an open cluster, approximately 5,000 light years distant. The primary dominates, an orange-hued giant of magnitude 2.2, 228 ± 2 light-years from Earth. It also hosts the red supergiant PZ Cassiopeiae, which is one of the largest known stars with an estimate of 1,190–1,940 R☉ and is also a semiregular variable. [5], Other cultures see a hand or moose antlers in the pattern. The first, designated 3C 10 or just Tycho's Supernova Remnant, is the aftermath of the supernova called Tycho's Star. Delta Scuti variables, which are also known as Dwarf Cepheids, Al Velae or Al Velorum stars, typically show fluctuations in luminosity due to both radial and non-radial pulsations on their surface. It has around 450 times the Sun's diameter and 17 times its mass, having begun life 45 times as massive as the Sun. Numele tradiţional pentru Alfa Casiopeea, cea mai sudică stea a Constelaţiei Casiopeea. e-POP Becomes Fourth Member of Swarm Constellation. The primary is a white-hued star of magnitude 4.5 and an α2 Canum Venaticorum variable, the secondary is a yellow-hued star of magnitude 6.9, and the tertiary is a star of magnitude 8.4. A rich section of the Milky Way runs through Cassiopeia, stretching from Perseus towards Cygnus, and it contains a number of open clusters, young luminous galactic disc stars, and nebulae.

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