However, its most prominent member, the double star Phi Cassiopeiae, is far closer – between 1000 and 4000 light-years away. IC 10 is an irregular galaxy that is the closest known starburst galaxy and the only one in the Local Group of galaxies. Vous y verrez une constellation dessinant un W dans le ciel. Also in front of the throne there was what looked like a sea of glass, clear as crystal. 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. It is concentrated towards its center and detached from the star field. closer to the zenith) and the W appears inverted. Reine vaniteuse qui prétendait qu’elle et sa fille Andromède étaient plus belles que les filles du Dieu Poséidon au point que celui-ci, contrarié et en colère la condamna à tourner sans fin sur la voûte étoilée. [26] Its magnetic field and wind of particles creates a visible bow shock 4 light-years ahead of it, colliding with the diffuse, and usually invisible, interstellar gas and dust. Cette constellation fait partie du groupe de constellations rattachées au mythe d'Andromède. La dernière modification de cette page a été faite le 11 septembre 2020 à 21:58. M103 is far poorer than M52, with only about 25 stars included. [38], The December Phi Cassiopeiids are a recently discovered early December meteor shower that radiates from Cassiopeia. 2016 - Ecosia uses the ad revenue from your searches to plant trees where they are needed the most. β Cassiopeiae (Caph) est une étoile variable de la classe Delta Scuti : elle passe de la magnitude 2,25 à 2,31 en seulement 2 heures et demie. 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. In the equatorial coordinate system, the right ascension coordinates of these borders lie between 00h 27m 03s and 23h 41m 06s, while the declination coordinates are between 77.69° and 46.68°. The constellation hosts some of the most luminous stars known, including the yellow hypergiants Rho Cassiopeiae and V509 Cassiopeiae and white hypergiant 6 Cassiopeiae. Cassiopée est une des 88 constellations du ciel, visible dans l'hémisphère nord. Cassiopée permet de trouver l'étoile polaire, qui marque le pôle nord. Constellation Cassiopée. https://fr.wikipedia.org/w/index.php?title=Cassiopée_(constellation)&oldid=174636299, Catégorie Commons avec lien local identique sur Wikidata, Article contenant un appel à traduction en anglais, Portail:Sciences de la Terre et de l'Univers/Articles liés, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence. [22], The other prominent open clusters in Cassiopeia are NGC 457 and NGC 663, both of which have about 80 stars. The asterism is oriented as a W when below Polaris during northern spring and summer nights. découvrez le sens de nombreuses autres mythes, personnages fabuleux, légendes insolites Stars show space's deepness, symbolising for us boundless … This is variously said to represent a woman's hand dyed red with henna, as well as the bloodied hand of Muhammad's daughter Fatima. It is 99.4 ± 0.4 light-years from Earth. While parts of the constellation technically rise above the horizon to observers between the latitudes of 12°S and 43°S, stars within a few degrees of the horizon are to all intents and purposes unobservable. η Cassiopeiae (Achird) est une étoile double très proche du système solaire (19 années-lumière). α Cassiopeiae (Schedar), la Poitrine en arabe, est l'étoile la plus brillante de la constellation. [28] It has a minimum magnitude of 6.2 and a maximum magnitude of 4.1; its period is approximately 320 days. This is giving the star an oblate spheroid shape with an equatorial bulge that is 24% larger than the polar radius. [34], NGC 457 is another open cluster in Cassiopeia, also called the E.T. Cassiopée Cassiopeia is as big "W" in the sky a well known and easy to find constellation . [13] All five are prominent naked eye stars, three are noticeably variable, and a fourth is a suspected low amplitude variable. NGC 185 is a magnitude 9.2 elliptical galaxy of type E0, 2 million light-years away. Cassiopée A est la source radio la plus intense du ciel[2], et était jusqu'en 2008 considéré comme le reste de supernova le plus jeune de la Voie lactée (ce titre étant actuellement (2016) attribué à SNR G1.9+0.3, âgé d'environ 140 ans)[3]. Cassiopeia is one of the 88 modern constellationswe see today. [17] Magnitude 8.9 yellow dwarf companion (B) is widely separated; companions (C and D) are closer and magnitudes 13 and 14 respectively. Kappa Cassiopeiae is a blue supergiant of spectral type BC0.7Ia that is some 302,000 times as luminous as the Sun and has 33 times its diameter. [25] It is a runaway star, moving at around 2.5 million mph relative to its neighbors (1,100 kilometers per second). [16], Epsilon Cassiopeiae has an apparent magnitude of 3.3. It has an overall magnitude of 6.4 and is approximately 10,000 light-years from Earth, lying in the Perseus arm of the Milky Way. Its most prominent member is actually a closer, superimposed double star; it consists of a 7th-magnitude primary and 10th-magnitude secondary. [35], Two members of the Local Group of galaxies are in Cassiopeia. It was observed in 1572 by Tycho Brahe and now exists as a bright object in the radio spectrum. Though they do not appear in Andromeda, both dwarf galaxies are gravitationally bound to the far larger Andromeda Galaxy. By searching with Ecosia, you’re not only reforesting our planet, but you’re also empowering the communities around our planting projects to build a better future for themselves. Le trône de la reine est bien visible dans la forme générale de la constellation, mais la reine ne l'est guère. Basic astrometry details. [5], Another Arab constellation that incorporated the stars of Cassiopeia was the Camel. Cassiopeia is a constellation found in the northern sky. 14 déc. [29] Between 240,000 and 270,000 times as luminous as the Sun, it is around 9,160 light-years distant from Earth. The galaxies Maffei 1 and Maffei 2 are located just to the south of the Heart and Soul Nebula. This depiction is from Augustin Royer's 1679 atlas.[5]. 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. [27] Theta Cassiopeiae, named Marfak, is a suspected variable star whose brightness changes by less than a tenth of a magnitude. 29 avr. Its most prominent member is an orange-hued star of magnitude 8.0 near the cluster's edge. Deux heures après le coucher du Soleil, regardez en direction du nord-est. Signification du prénom Cassiopée. The star constellations that can be seen in the night sky depend on the observer’s location and season, and they change throughout the year. Andromeda was then rescued by the hero Perseus, whom she later married. In 1572, Tycho Brahe's supernova flared brightly in Cassiopeia. It has been reported to show eclipses of less than 0.1 magnitudes with a period of 2 years and 1 month. Les étoiles de type Be sont des étoiles à rotation très rapide ; Tsih tourne sur elle-même à plus de 300 km/s à l'équateur, 150 fois plus vite que le Soleil, et cette rotation entraîne des pertes de matière : la formation de tores ou de disques autour de l'étoile accompagnée d'une baisse de luminosité, allant parfois jusqu'à 1,5 magnitude. Sigma Cassiopeiae is a binary star 1500 light-years from Earth. The primary dominates, an orange-hued giant of magnitude 2.2, 228 ± 2 light-years from Earth. [22], There are two supernova remnants in Cassiopeia. [7], In the 1600s, various Biblical figures were depicted in the stars of Cassiopeia. B Cassiopeiae was in fact the supernova known as Tycho's Supernova. [21], Delta Cassiopeiae, also known as Ruchbah or Rukbat, meaning "knee," is a possible Algol-type eclipsing binary star with a maximum brightness of magnitude 2.7. Recognizable for its W shape, the constellation is home to the Heart Nebula, the Soul Nebula, the Pacman Nebula, and the open clusters Messier 52 and Messier 103. These are the seven spirits of God. Cassiopeia (afkorting Cas) is een sterrenbeeld dat op de breedte van de Benelux het gehele jaar is te zien, het is circumpolair.Het sterrenbeeld heeft de vorm van de letter W. Het ligt tussen rechte klimming 23 u 00 m en 3 u 20 m en declinatie +55° en +75°. It is famous for its distinctive “W” shape. 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. It is also more distant, at 8200 light-years from Earth. 2011-06-15 23-50-00-stars.jpg 4,216 × 5,425; 22.47 MB The people of Pukapuka saw the figure of Cassiopeia as a distinct constellation called Na Taki-tolu-a-Mataliki.[9]. A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived outline or pattern, typically representing an animal, mythological person or creature, or an inanimate object.. 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. 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. Cassiopeia the Queen is the 25th largest constellation of the 88 modern constellations. 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. C’est à elle qu’on doit l’appellation de la constellation « Cassiopée ». Perseus and Andromeda were later married. [14] Within the constellation's borders, there are 157 stars brighter than or equal to apparent magnitude 6.5.[d][10]. Cassiopeia, in astronomy, a constellation of the northern sky easily recognized by a group of five bright stars forming a slightly irregular W. It lies at 1 hour right ascension and 60° north declination. M52, once described as a "kidney-shaped" cluster, contains approximately 100 stars and is 5200 light-years from Earth. Rho Cassiopeiae is about 10,000 light-years from Earth. NGC 457 is looser, and its brightest member is Phi Cassiopeiae, a white-hued supergiant star of magnitude 5.0. Omicron Cassiopeiae is a triple star and the primary is another γ Cassiopeiae variable. In Persia, she was drawn by al-Sufi as a queen holding a staff with a crescent moon in her right hand, wearing a crown, as well as a two-humped camel. Cassiopeia was the wife of King Cepheus of Aethiopia and mother of Princess Andromeda. The combination of its simple 'w' shape and the brightness of its stars makes Cassiopeia one of the most easily recognizable constellations in the night sky. In front of the throne, seven lamps were blazing. It has a green-hued primary of magnitude 5.0 and a blue-hued secondary of magnitude 7.3. The constellation is visible in some northerly regions of the Southern hemisphere in late spring. [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. [5], In Welsh Mythology Llys Dôn (literally "The Court of Dôn") is the traditional Welsh name for the constellation. I.e. Cassiopeia is located in the northern sky and from latitudes above 34°N it is visible year-round. It has around 450 times the Sun's diameter and 17 times its mass, having begun life 45 times as massive as the Sun. Rotating at about 92% of its critical speed, Caph completes a full rotation every 1.12 days. [19] It is a Delta Scuti variable with a small amplitude and period of 2.5 hours. À l'opposé de la Grande Ourse par rapport à la Petite Ourse, Cassiopée est très facilement reconnaissable grâce à sa forme de « W ».Les sommets de ce W sont, d'est en ouest, ε, δ, α, et β Cassiopeiae, les quatre étoiles les plus brillantes de la constellation. [5][6], Cassiopeia has been variously portrayed throughout her history as a constellation. The shower's parent body is a Jupiter family comet, though its specific identity is unknown.[39]. Paramètres de prises de vue de chaque champ de ciel : * 17 photos * … Elle comporte entre autres le couple NGC 147 et NGC 185 (galaxies satellites de la Galaxie d’Andromède), l'amas ouvert NGC 7789 (la Rose de Caroline) et M52, qu'on peut trouver en projetant une ligne de α à β Cassiopeiae et en l'étendant sur la même distance à l'ouest. In northern winter, and when seen from southern latitudes, it is "above" Polaris (i.e. Cassiopée est une des 88 constellations du ciel, visible dans l'hémisphère nord.C'est une constellation circumpolaire, très facilement reconnaissable grâce à sa forme de « W ».. Les sommets en sont, d'est en ouest, ε, δ, γ, α et β Cassiopeiae, les cinq étoiles les plus brillantes de la constellation. The main stars of Cassiopeia make its tail, Andromeda and Triangulum form its body, and Aries makes its head. The Chinese astronomers saw several figures in what is modern-day Cassiopeia. Zeta Cassiopeiae (Fulu[24]) is a suspected slowly pulsating B-type star. 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. Its head was composed of Lambda, Kappa, Iota, and Phi Andromedae; its hump was Beta Cassiopeiae; its body was the rest of Cassiopeia, and the legs were composed of stars in Perseus and Andromeda. The primary and secondary are close together but the primary and tertiary are widely separated. The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "Cas". Un article de Wikipédia, l'encyclopédie libre. [22], but this has never been confirmed. [4] She was forced to wheel around the North Celestial Pole on her throne, spending half of her time clinging to it so she does not fall off, and Poseidon decreed that Andromeda should be bound to a rock as prey for the monster Cetus. [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. Phi Cassiopeiids are very slow, with an entry velocity of approximately 16.7 kilometers per second. La primaire est très semblable au Soleil (1,28 fois sa masse, de classe G3), la secondaire est un peu plus petite (une naine de classe K, de 0,7 fois la masse du Soleil). The cluster was discovered in 1787 by William Herschel. [5], The people of the Marshall Islands saw Cassiopeia as part of a great porpoise constellation. Eta Cassiopeiae (Achird[24]) is a spectroscopic binary star with a period of 480 years, and a suspected RS Canum Venaticorum variable. Constellations de Cassiopée, Persée et Andromède. Cassiopeia is easily recognizable in the sky because of its distinctive W shape. L'alignement interne du « W », entre Tsih (γ Cas) et Ruchbah (δ Cas), conduit à l'épaule de Persée, Mirphak (α Per), dans l'alignement formé par γ, α et δ Per. Constellation maps divide the celestial sphere into 88 parts, known as constellations, helping astronomers locate stars and deep sky objects. 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]. In mid of November it culminates at about 21:00 local time (9:00 pm). 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. NGC 457 is fairly rich; it is a Shapley class e and Trumpler class I 3 r cluster. Fourteen star systems have been found to have exoplanets, one of which—HR 8832—is thought to host seven planets. – Gamma Cassiopeia, the constellation’s brightest star, is a blue (B0.5 IVe) variable star located nearly 600 light years away whose visual magnitude ranges between 1.6 and 3.0. 2016 - Revelation 4:5 - 6 From the throne came flashes of lightning, rumblings and peals of thunder. Technical card Imaging telescopes or lenses:Nikon 18-55mm f/3.5-5.6G AF-S DX VR Nikkor Zoom. I.e. The five brightest stars of Cassiopeia – Alpha, Beta, Gamma, Delta, and Epsilon Cassiopeiae – form the characteristic W-shaped asterism. Il s'agit également d'une géante en devenir, son enveloppe est en expansion et son noyau en contraction. La Voie lactée passe par cette région du ciel, ce qui la rend très riche en étoiles.

Anja and Christian met differents professionals of catering trade in order to define their needs. C'est une constellation circumpolaire, très facilement reconnaissable grâce à sa forme de « W ». Upsilon was later found to be two stars and labelled Upsilon1 and Upsilon2 by John Flamsteed. [5], Other cultures see a hand or moose antlers in the pattern. Cassiopeia is a prominent constellation in the northern sky. La pointe centrale du W pointe très approximativement en direction de l'étoile polaire, α Ursae Minoris. 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). [3] Its position in the Northern Celestial Hemisphere means that the whole constellation is visible to observers north of 12°S. C'est une constellation circumpolaire, très facilement 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. I. 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. USS Cassiopeia (AK-75) was a United States Navy Crater-class cargo ship named after the constellation. The origins of the earliest constellations likely go back to prehistory.People used them to relate stories of their beliefs, experiences, creation, or mythology. Two Messier objects, M52 (NGC 7654) and M103 (NGC 581), are located in Cassiopeia; both are open clusters. De cette reine, on ne discerne que le trône, c’est d’ailleurs pourquoi, … 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. At least three of Dôn's children also have astronomical associations: Caer Gwydion ("The fortress of Gwydion") is the traditional Welsh name for the Milky Way, and Caer Arianrhod ("The Fortress of Arianrhod") being the constellation of Corona Borealis. En chinois cependant, elle est nommée Tsih, le fouet. L'alignement du bord droit du « W », entre Caph (β Cas) et Shedar (α Cas), se prolonge vers les pieds d'Andromède, 51 And pour le pied Nord, et finalement Almach (γ And), son pied Sud, tous les deux visibles sur l'illustration. La constellation se repère directement par sa forme très caractéristique en « M » ou « W » (suivant la saison). Cassiopeia (listen) is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivaled beauty. Media in category "Cassiopeia (constellation)" The following 102 files are in this category, out of 102 total. Dans la mythologie grecque, Cassiopée, 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. 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. mythologie, constellations : cassiopée par Maldoror le Dim 10 Juil 2005 - 13:46 On raconte que les déeses de l’olympes étaient étonnament fières et succeptibles et malheur à la mortelle qui osait rivaliser de beauté avec elles. The first, designated 3C 10 or just Tycho's Supernova Remnant, is the aftermath of the supernova called Tycho's Star. 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. "Constellation boundaries: How the modern constellation outlines came to be", "The 2001 US Naval Observatory Double Star CD-ROM. Et si dans la mythologie scandinave, ces 5 étoiles étaient censées figurer un attelage de 5 rennes, dans la mythologie grecque, elles figurent une reine assise sur son trône. [11] The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930,[b] are defined by a polygon of 30 segments. A rich section of the Milky Way runs through Cassiopeia, containing a number of open clusters, young luminous galactic disc stars, and nebulae. In the northern skies (recognizable from its W shape) is the familiar constellation of Cassiopeia, one of the 48 traditional constellations Software:Photofiltre 7. In Chinese astronomy, the stars forming the constellation Cassiopeia are found among three areas: the Purple Forbidden enclosure (紫微垣, Zǐ Wēi Yuán), the Black Tortoise of the North (北方玄武, Běi Fāng Xuán Wǔ), and the White Tiger of the West (西方白虎, Xī Fāng Bái Hǔ). Iota Cassiopeiae is a triple star 142 light-years from Earth. It was perhaps observed as a faint star in 1680 by John Flamsteed. Psi Cassiopeiae is a triple star 193 light-years from Earth. These included Bathsheba, Solomon's mother; Deborah, an Old Testament prophet; and Mary Magdalene, a disciple of Jesus. This asterism is formed by five bright stars; Epsilon, Ruchbah (Delta), Gamma, Schedar (Alpha Cassiopeiae) and Caph (Beta Cassiopeiae). 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. Cassiopeia compared her daughter Andromeda's beauty to that of the sea god Nereus' daughters. Tycho’s Nova, one of Its brightest star, Shedar (Arabic for “breast”), has a magnitude of 2.2. Mosaïque de 5 champ de ciel. It was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy. [9] This decrease means that, at frequencies below 1 GHz, Cas A is now less intense than Cygnus A. Cas A is still the brightest extrasolar radio source in the sky at frequencies above 1 GHz. The primary is a yellow-hued star of magnitude 3.5 and the secondary is a red-hued star of magnitude 7.5. Origine, signification, caractère des Cassiopée, popularité... Découvrez toutes les infos sur le #prenom Cassiopée Citée par Aratos de Soles[1], puis par Ptolémée dans l'Almageste, la constellation représente Cassiopée, la reine d'Éthiopie de la mythologie grecque, femme de Céphée et mère d'Andromède, à côté desquels elle se trouve. The stars of NGC 457, arrayed in chains, are approximately 10,000 light-years from Earth. Signification du prénom : « Cassiopée » est le nom d’une constellation. [10] It is bordered by Cepheus to the north and west, Andromeda to the south and west, Perseus to the southeast and Camelopardalis to the east, and also shares a short border with Lacerta to the west. Prénom CASSIOPEE : Découvrez l'origine du prénom, son caractère, son étymologie et les célébrités qui le portent ainsi que la popularité de ce nom. It contains more than 100 stars, which vary widely in brightness. La constellation héberge NGC 281 (la nébuleuse Pacman), NGC 7635 (nébuleuse de la Bulle) et les nébuleuses voisines IC 1805 et IC 1848. Look it up now! 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. [22], Rho Cassiopeiae is a semi-regular pulsating variable yellow hypergiant, among the most luminous stars in the galaxy at approximately 500,000 L☉. Bien que située au centre de la constellation, et aussi brillante que les autres, γ Cassiopeia ne possède pas de nom laissé par les civilisations méditerranéennes. The charioteer's whip was represented by Gamma Cassiopeiae, sometimes called "Tsih", the Chinese word for "whip". Il n'y a guère besoin de prendre un alignement quelconque, l'étoile polaire (près du bord supérieur de l'illustration) est la seule étoile brillante située dans cette direction. Cassiopée Cassiopeia is as big "W" in the sky a well known and easy to find constellation . The constellation takes its name from a queen in Greek mythology. Ces deux étoiles orange tournent l'une autour de l'autre en 480 ans à 70 ua. It is easily recognizable due to its distinctive 'W' shape, formed by five bright stars. Imaging cameras:Nikon D5000. [22] Within the 'W' asterism formed by Cassiopeia's five major stars lies Cassiopeia A (Cas A). It is a spectroscopic binary, with an orbital period of 203.59 days and a companion with a calculated mass about the same as the Sun. The Chukchi of Siberia similarly saw the five main stars as five reindeer stags. The primary is an orange-hued giant star of magnitude 4.7 and the secondary is a close pair of stars that appears to be of magnitude 9.0. With its very northern declination of +46 to +87 degrees it is circumpolar for most northern hemisphere observers. The arm is made up of the stars α Per, γ Per, δ Per, ε Per, η Per, and ν Per. The Heart Nebula and the Soul Nebula are two neighboring emission nebulae about 7,500 light-years away. Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. The famous W of Cassiopeia would be unchanged because its stars are much further away than α Centauri, but the Sun would appear as an addition at the leftmost end, closest to ε Cas, creating a zig-zag pattern.[33]. Covering 598.4 square degrees and hence 1.451% of the sky, Cassiopeia ranks 25th of the 88 constellations in area. The constellation is named after Cassiopeia, the queen of Aethiopia. - Cassiopée - [ Cas ] Cassiopée est une des 88 constellations du ciel, visible dans l'hémisphère nord. The hand is made up of the stars α Cas, β Cas, γ Cas, δ Cas, ε Cas, and η Cas. En poursuivant dans le prolongement de cet axe, on tombe sur la constellation de la Grande Ourse, généralement basse sur l'horizon quand Cassiopée est bien visible.

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