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This page describes an image The orbit of beta Pictoris b

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Image caption: This series of images shows the orbital motion of the extrasolar planet (exoplanet) beta Pictoris b. The planet is the bright dot in each image. The planet's host star is hidden behind the black circle in the middle of each image. This is done to remove the much brighter host star which would otherwise drown out the light from the planet. The planet's orbit is viewed edge-on. Seeing the orbit from this perspective makes it look like the planet moves along a straight line.
Between February 2015 and November 2016 beta Pictoris b appears to move closer and closer to its host star. The planet then moved so close to the star that it was not seen for almost two years, after which it reappeared on the other side of the star.
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Image credit: ESO/Lagrange/SPHERE consortium Credit Link
Related glossary terms: Exoplanet , Orbit
Categories: Exoplanets & Astrobiology

Image license: Creative Commons Attribution 4.0 International (CC BY 4.0) Creative Commons Attribution 4.0 International (CC BY 4.0) icons

The media file captions presented on the OAE website were written, translated and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits for our translation project here. All media file captions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE". The media files themselves may have different licenses (see above) and should be credited as listed above under "credit".

Captions in Different Languages:

Arabic
Image caption: تُظهر سلسلة الصور هذه الحركة المدارية للكوكب الخارجي (خارج المجموعة الشمسية) بيتا بيكتوريس ب. الكوكب هو النقطة الصفراء المضيئة في كل صورة. تم إخفاء النجم المضيف للكوكب خلف الدائرة السوداء في منتصف كل صورة حتى لايطغى ضوئه على ضوء الكوكب. يشاهد مدار الكوكب من الحافة. رؤية المدار من هذا المنظور يجعله يبدو وكأن الكوكب يتحرك على طول خط مستقيم.
خلال الفترة الممتدة ما بين شباط 2015 و تشرين الثاني 2016 يبدو أن الكوكب يقترب أكثر فأكثر من نجمه المضيف، ثم اقترب اكثر من النجم لدرجة أنه لم يشاهد لمدة عامين تقريبا ، بعدها ظهر مرة اخرى على الجانب الآخر من النجم.
Image credit: حقوق الصورة تعود الى: المرصد الأوروبي الجنوبي/لاغرانج/أبحاث الكواكب الخارجية ذات القياس الطيفي عالي التباين
Related glossary terms: Exoplanet , Orbit
Caption translation status: Approved by a reviewer
Caption translators: Ali Al-Edhari
Caption reviewers: Ahmed Abulwfa

Italian
Image caption: Questa serie di immagini mostra il moto orbitale del pianeta extrasolare (esopianeta) beta Pictoris b. Il pianeta è il punto luminoso in ogni immagine. La stella ospite del pianeta è nascosta dietro il cerchio nero al centro di ogni immagine. Ciò è stato fatto per eliminare la stella ospite, molto più luminosa, che altrimenti avrebbe oscurato la luce del pianeta. L'orbita del pianeta è vista di profilo. Vedendo l'orbita da questa prospettiva sembra che il pianeta si muova lungo una linea retta.
Nel periodo da febbraio 2015 a novembre 2016 beta Pictoris b sembra avvicinarsi sempre più alla sua stella ospite. Il pianeta si è poi avvicinato così tanto alla stella che non è stato visto per quasi due anni, dopodiché è riapparso dall'altra parte della stella.
Image credit: Consorzio ESO/Lagrange/SPHERE
Related glossary terms: Esopianeta , Orbita
Caption translation status: Approved by a reviewer
Caption translators: Giuliana Giobbi
Caption reviewers: Rosa Valiante, Rodolfo Canestrari