{"id":90813,"date":"2019-06-06T13:24:22","date_gmt":"2019-06-06T11:24:22","guid":{"rendered":"https:\/\/osr.org\/?p=90813"},"modified":"2024-08-05T11:43:29","modified_gmt":"2024-08-05T09:43:29","slug":"constellation-gemeaux-caracteristiques-etoiles-mythologie","status":"publish","type":"post","link":"https:\/\/osr.org\/fr\/blog\/astronomie\/constellations\/constellation-gemeaux-caracteristiques-etoiles-mythologie\/","title":{"rendered":"Constellation G\u00e9meaux: caract\u00e9ristiques, \u00e9toiles, mythologie"},"content":{"rendered":"

Furthermore, it should be noted that Gemini borders the Coachman and the Lynx to the north and the Unicorn and the Little Dog to the south. You are certainly curious to know the main characteristics of the Gemini constellation. Are you also wondering how many stars Gemini has? Does the mythology of this constellation interest you? You may be getting all the answers in this comprehensive file.<\/span><\/span><\/p>\n

The constellation Gemini is one of the thirteen constellations of the zodiac that are crossed by the solar system over a period of one year.<\/span><\/span><\/p>\n

It is limited by the constellation Taurus which is on its left side and that of Cancer on the right. When we refer to the legends presented by mythology, this constellation would embody a story between two brothers. These are Pollux and Castor who also gave their name to the main stars of this constellation.<\/span><\/span><\/p>\n

This Gemini star cluster is made up of two main meteor showers. These are the elipson-geminids and the geminids. The activity of these two swarms does not occur at the same time. This constellation is crossed by the sun from June 21 until July 20.<\/span><\/span><\/p>\n

Observation of the constellation allows us to notice that in the northern part, it is close to the Coachman and the Lynx. On its southern side, we can see the Unicorn and the little Dog. Gemini is a sign of the zodiac, and was considered an integral part of the constellations that were listed by Ptolemy. The Gemini constellation is made up of several stars, of different colors.<\/span><\/span><\/p>\n

The main characteristics of the Gemini constellation<\/span><\/span><\/h2>\n

It should be noted that the constellation Gemini is perceptible at the level of the Big Dipper. Looking at it, you will notice that the diagonal of the large cart is pulling towards Pollux. Also, you will see that the same alignment points to Orion. Furthermore, you should know that you will be able to observe this constellation following the alignment of Rigel and Betelgeuse.<\/span><\/span><\/p>\n

Regarding the apparent appearance of the Gemini constellation, it must be said that it has a magnitude of 4. Which makes it very visible, if the conditions are right. You can also notice that the stars of the constellation observe a double alignment. The first is located on a North-East, South-West axis. The direction thus evolves from the head of Gemini to Orion. On the other hand, the second alignment goes in a northwest, southeast direction. There you will find the Castor\/Pollux pair. Finally, it should be noted that the Castor\/Pollux couple also represents the arms, knees and feet of the two Geminis.<\/span><\/span><\/p>\n

Finally, note that, if visible to the naked eye, the constellation Gemini would look like two children holding hands. However, due to the paleness of some of these stars, you will only be able to see a simple rectangle. To contemplate it in its splendor, you will need to use a telescope.<\/span><\/span><\/p>\n

The Gemini constellation is the one observed from the Great Bear. That is to say from Pollux to Orion. This is a constellation that is perfectly observable due to its magnitude which is 5. As with all constellations, it is necessary that all the necessary conditions are met to guarantee optimal viewing.<\/span><\/span><\/p>\n

The stars that compose it are distributed in two directions. A first equivalent to that of the North East and another towards the South West. The brightest star in this constellation is Beta Geminorum, also called Pollux. It is surrounded by certain bordering constellations, namely Cancer, Coachman, Unicorn, Lynx, Orion, Little Dog and Taurus. In this constellation, two stars called Castor and Pollux are the most popular.<\/span><\/span><\/p>\n

Close observation allows us to notice that their asterism is similar to two silhouettes holding hands and facing each other. These silhouettes are attributed to two twins according to a mythological legend. The star Castor is located on the side of the constellation Coach while Pollux is closer to Little Dog. One of the main characteristics of the constellation is that it is the only one in the system which has two stars of identical luminosity and which are so close together.<\/span><\/span><\/p>\n

The main stars of the constellation Gemini<\/span><\/span><\/h2>\n

As a reminder, you should know that astronomers classify stars according to their degree of brightness. Thus, they assign a letter of the Greek alphabet to each of the stars in order to be able to distinguish them. The star with the greatest light signaling, they will give it the letter Alpha. The second will have the title of Beta and so on in chronological order. However, it should be noted that the constellation Gemini is an exception. Indeed, its most scintillating star, namely Pollux, was described as Beta and not Alpha. The justification would be found in the fact that Castor precedes Pollux in the order of the earth’s rotation. Having said this, it should be understood that the Gemini constellation is made up of two main stars (Castor and Pollux), a globular cluster M 35 and several nebulae.<\/span><\/span><\/p>\n

 <\/p>\n

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The double star: Castor and Pollux are not the only stars in this constellation. A double star was also discovered there by researcher Von Struve in 1829. This star is located in the middle of the constellation. It is also because of this position that the name wesat, which means \u201cmiddle\u201d in Arabic, was given to it.<\/span><\/span><\/p>\n

Propus: The star Propus is also a component of the constellation Gemini. It is an eclipsing binary that was discovered in 1781.<\/span><\/span><\/p>\n

The nebulae of the Gemini constellation: The planetary nebula NGC 2371 is also located in the Gemini constellation. Its spectrum is 0e, with a magnitude of 8.2. It was discovered by Herschel in 1785. Still in the category of planetary nebulae in this constellation is NGC 23 92. With a magnitude of 9.9, it is also known as Clown. Some time after its discovery, calculations will reveal that this nebula is indeed a planet in the solar system, namely Uranus. The constellation Gemini is therefore made up of stars, nebulae and clusters.<\/span><\/span><\/p>\n

The Castor star<\/span><\/span><\/strong><\/p>\n

Il s\u2019agit d\u2019une \u00e9toile g\u00e9ante blanche. Les astronomes lui ont attribu\u00e9 le titre d\u2019Alpha Gemini. Et pourtant, elle n\u2019est pas pour autant l\u2019astre la plus brillante de la constellation. Toujours est-il qu\u2019elle constitue la 24\u00e8me<\/sup>\u00a0\u00e9toile la plus \u00e9clatante de toute la galaxie. Elle est situ\u00e9e \u00e0 49,8 ann\u00e9es lumi\u00e8res de la plan\u00e8te terre. Cependant, il faut pr\u00e9ciser que Castor est loin d\u2019\u00eatre une simple \u00e9toile. En r\u00e9alit\u00e9, cet astre est un syst\u00e8me compos\u00e9 de six \u00e9toiles. Ainsi, ces derni\u00e8res forment trois bin\u00f4mes (\u00e9toiles binaires). Il faut donc retenir que Castor A est dot\u00e9 d\u2019une magnitude de 1,98. Tandis que Castor B poss\u00e8de une magnitude apparente de 2,88. Par contre, la troisi\u00e8me \u00e9toile binaire, Castor C est difficilement perceptible du fait d\u2019une magnitude de 9,5.<\/p>\n

L\u2019on ne peut aborder le sujet des \u00e9toiles principales de la constellation sans faire r\u00e9f\u00e9rence \u00e0 Castor et \u00e0 Pollux. Ce sont donc les deux \u00e9toiles principales de cette constellation. L\u2019\u00e9toile Castor est encore appel\u00e9e Apollo ou alpha Gem. Sa d\u00e9couverte a \u00e9t\u00e9 faite en 1678 par Cassini Giovanni Dominico. Il s\u2019agit d\u2019une \u00e9toile dot\u00e9e d\u2019un syst\u00e8me de type multiple. Elle est compos\u00e9e de 6 autres \u00e9toiles avec une magnitude de 1,94. L\u2019observation de Castor n\u00e9cessite l\u2019utilisation d\u2019un t\u00e9lescope qui aurait au minimum 100 millim\u00e8tres. Cette grande \u00e9toile de couleur blanche n\u2019est pas la plus brillante de la constellation.<\/p>\n

Pollux<\/strong><\/p>\n

La seconde \u00e9toile importante de cette cat\u00e9gorie n\u2019est autre que Pollux. Encore appel\u00e9e Hercules, cette \u00e9toile est la plus lumineuse de toute la constellation des g\u00e9meaux. Elle a un spectre de K0IIIb et une magnitude de 1,16. Tr\u00e8s g\u00e9ante, la taille de cette \u00e9toile a \u00e9t\u00e9 compar\u00e9e au triple de celle \u00a0de la plan\u00e8te Jupiter. Cette \u00e9toile a port\u00e9 plusieurs appellations telles que Pollux b ou encore Thestias. Pollux est de couleur Orange et est situ\u00e9 \u00e0 environ une trentaine d\u2019ann\u00e9es-lumi\u00e8re du soleil. Sa largeur \u00e9quivaut par ailleurs \u00e0 plus de 10 fois celle du soleil.<\/p>\n

Pollux est l\u2019\u00e9toile la plus brillante de toute la constellation Gemini. Il s\u2019agit d\u2019une g\u00e9ante orange localis\u00e9e \u00e0 34 ann\u00e9es lumi\u00e8res seulement. Avec une magnitude apparente de 1,16, Pollux peut \u00eatre consid\u00e9r\u00e9e comme la 16\u00e8me<\/sup>\u00a0\u00e9toile la plus \u00e9clatante de toute la vo\u00fbte c\u00e9leste. Il faut pr\u00e9ciser que ce qui fait la particularit\u00e9 de cet astre tient \u00e0 son exoplan\u00e8te. Soup\u00e7onn\u00e9 en 1993, l\u2019exoplan\u00e8te de Pollux est officiellement d\u00e9couverte en 2006.<\/p>\n

Ainsi, la plan\u00e8te fut d\u2019abord d\u00e9nomm\u00e9e Pollux avant d\u2019\u00eatre appel\u00e9e Th\u00e9stias. Les experts consid\u00e8rent que l\u2019exoplan\u00e8te constituerait 2,3 fois l\u2019\u00e9paisseur de Jupiter. En plus de ces deux \u00e9toiles principales, la constellation des G\u00e9meaux est compos\u00e9e d\u2019astres mineurs. A noter que ces derniers forment le corps de deux \u00e9toiles principales. Ainsi donc, Mebsuta, Tejat Posterior et Tejat Prior forment Castor. En revanche, Wasat, Mekbuda et Alhena constituent le corps de Pollux. En d\u00e9finitive, il faut retenir que la constellation poss\u00e8de un amas globulaire, M35 et une n\u00e9buleuse, NGC 2392. L\u2019amas de la constellation fait partie des plus magnifiques que compte la voie lact\u00e9e. Vous y trouverez pr\u00e8s de 200 \u00e9toiles localis\u00e9es \u00e0 2500 ann\u00e9es lumi\u00e8res.<\/p>\n

Mythologie de la constellation des G\u00e9meaux<\/h2>\n

L\u2019histoire de la constellation des G\u00e9meaux est \u00e0 situer dans la mythologie de la Gr\u00e8ce antique. Mais, il faut noter qu\u2019ils existent une multitude de l\u00e9gendes sur les G\u00e9meaux Pollux et Castor. Une d\u2019entre elles retracent la vie des fils jumeaux de la Reine L\u00e9da. Les deux fr\u00e8res jumeaux n\u2019ont paradoxalement pas le m\u00eame p\u00e8re.<\/p>\n

Ainsi, il se trouve que Pollux est l\u2019enfant du dieu Zeus. Tandis que Castor fut enfant\u00e9 par un mortel du nom de Tyndare. Amis depuis leur tendre enfance, Castor et Pollux d\u00e9cident de participer ensemble \u00e0 l\u2019exp\u00e9dition des argonautes. Ils vont livrer de nombreuses batailles ensemble et compter plusieurs exploits. Parmi ceux-ci, figurent en droite ligne l\u2019extermination des pirates de l\u2019Archipel de C\u00e9phalonie. Mais un jour, au cours d\u2019une bataille, Castor perdit la vie.<\/p>\n

Pollux, ne pouvant pas supporter l\u2019id\u00e9e de vivre sans lui, demanda \u00e0 Zeus de faire de Castor un immortel. Si cela ne convenait pas \u00e0 Zeus, il lui supplia alors de le rendre mortel afin qu\u2019il puisse rejoindre Castor. Zeus accepta de partager l\u2019immortalit\u00e9 de Pollux avec celui de Castor. Depuis cette date, le Dieu Zeus les a plac\u00e9s dans le ciel, formant ainsi la constellation des Gemini. Enfin, notez que pour les grecs, les G\u00e9meaux repr\u00e9sentent les enfants d\u2019H\u00e9l\u00e8ne de Troie (Castor et Pollux). Par contre, les romains les assimilent \u00e0 Romulus et R\u00e9mus.<\/p>\n

L\u2019\u00e9tude de la mythologie en rapport avec cette constellation permet de d\u00e9couvrir plusieurs l\u00e9gendes. Parmi celles-ci figure l\u2019histoire des fils jumeaux d\u2019une Reine nomm\u00e9e L\u00e9da.<\/p>\n

La l\u00e9gende tourne surtout autour des \u00e9toiles principales de la constellation\u00a0: Castor et Pollux. C\u2019est ainsi que deux fr\u00e8res de la m\u00eame m\u00e8re, dont Pollux qui \u00e9tait le fils \u00e0 \u00a0Zeus, et Castor celui d\u2019un autre\u00a0 homme.<\/p>\n

Une bonne entente a toujours r\u00e9gn\u00e9 entre les deux fr\u00e8res qui \u00e9taient tous deux des marins. Lorsque lors d\u2019une de leur exp\u00e9dition nocturne en mer, une temp\u00eate surgit, les membres de l\u2019\u00e9quipage ont observ\u00e9 deux feux tournoyer autour de\u00a0 la t\u00eate des deux fr\u00e8res. Le calme revint alors quelques minutes apr\u00e8s cet \u00e9v\u00e9nement intrigant.<\/p>\n

This is how the two brothers began to be invoked in order to avoid shipwrecks several years ago. Castor would later die in a fight. But at Pollux’s request to Zeus, the two brothers will end up sharing Pollux’s immortality. Castor being the son of a human and Pollux that of a god namely Zeus. The latter then granted the two brothers a place in heaven. According to legend, this is how the Gemini constellation was formed.<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Furthermore, it should be noted that Gemini borders the Coachman and the Lynx to the north and the Unicorn and the Little Dog to the south. You are certainly curious to know the main characteristics of the Gemini constellation. Are you also wondering how many stars Gemini has? Does the mythology of this constellation interest […]<\/p>\n","protected":false},"author":60,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[519],"tags":[],"class_list":["post-90813","post","type-post","status-publish","format-standard","hentry","category-constellations"],"acf":[],"yoast_head":"\nConstellation G\u00e9meaux: caract\u00e9ristiques, \u00e9toiles, mythologie - Online Star Register<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/osr.org\/fr\/blog\/astronomie\/constellations\/constellation-gemeaux-caracteristiques-etoiles-mythologie\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Constellation G\u00e9meaux: caract\u00e9ristiques, \u00e9toiles, mythologie - Online Star Register\" \/>\n<meta property=\"og:description\" content=\"Furthermore, it should be noted that Gemini borders the Coachman and the Lynx to the north and the Unicorn and the Little Dog to the south. 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