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This page describes an image Venus: A Planet Without Seasons

A female astronaut explains in Arabic about the lack of seasons on Venus

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Légende d'image : This infographic is part of the "Simplifying Astronomy for Arabic Speakers" project, which aims to provide simplified scientific information about Venus, one of the most mysterious planets in our solar system.
Why Doesn’t Venus Have Seasons?
Venus is an exception among the planets when it comes to seasonal changes. Unlike Earth and Mars, which have a noticeable axial tilt, Venus’ axis is nearly parallel to its orbital plane around the Sun. This means that both hemispheres receive the same amount of solar radiation throughout the year, leading to a lack of distinct seasons like those experienced on Earth.
Extreme Temperatures
Venus is known as the hottest planet in the solar system, with surface temperatures reaching 462°C (864°F) during the day and dropping to -173°C (-280°F) at night. This extreme variation does not occur due to axial tilt or rotation but is primarily caused by Venus’ thick atmosphere, which is composed mostly of carbon dioxide. This composition creates a runaway greenhouse effect, making Venus even hotter than Mercury, despite being farther from the Sun.
The Impact of the Thick Atmosphere
Venus' dense atmosphere plays a major role in stabilizing its temperatures, as it traps solar heat and prevents it from escaping into space. As a result, Venus remains consistently hot, whether in daylight or nighttime.
Conclusion
Venus presents a unique environment in the solar system, where its structure and extreme conditions prevent it from experiencing seasons like Earth. This makes it a fascinating target for scientists seeking to understand how atmospheric composition influences climate and temperature changes over time. Studying Venus is not just about exploring a single planet—it provides valuable insights into the evolution of planetary atmospheres and climate systems across the universe.
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Crédits pour l'image : Ali Al-Edhari

Termes du glossaire en rapport : Saisons , Vénus
Catégories : Système solaire

Licence de l'image : Creative Commons (CC) Attribution 4.0 International (CC BY 4.0) Creative Commons (CC) Attribution 4.0 International (CC BY 4.0) Icônes

Les légendes des fichiers média présents sur le site de l'OAE ont été écrites, traduites et relues grâce à un effort collectif de l'OAE, les Centres et les Noeuds de l'OAE, les Coordinateurs Nationaux de l'Astronomie pour l'Education de l'OAE(NAECs) et d'autres volontaires. La liste complète des crédits pour ce projet est disponible ici . Toutes les légendes des fichiers média sont déposés sous licence Creative Commons CC BY-4.0 et doivent être créditées au nom de "IAU OAE". Les fichiers média eux-mêmes peuvent avoir des licences différentes (voir plus haut) et et doivent être crédités comme indiqué ci-dessus sous le terme "credit".

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Légendes proposées dans différentes langues :

Arabe
Légende d'image : الزهرة، الكوكب الأكثر شبهاً بالأرض من حيث الحجم والتكوين، يخفي في غلافه الجوي أسراراً مذهلة. على الرغم من قربه من الشمس، إلا أن جوه السميك والمشبع بثاني أكسيد الكربون يجعله أكثر الكواكب حرارةً في النظام الشمسي، حيث تصل درجات الحرارة إلى 462 درجة مئوية، ليلًا ونهارًا!
لكن ما يميز كوكب الزهرة حقًا هو أنه لا يمتلك فصولًا كالتي نعرفها على الأرض. بسبب ميلان محوره شبه المنعدم، يتلقى الكوكب نفس كمية الإشعاع الشمسي طوال السنة، مما يجعله عالمًا ثابت الحرارة بشكل مخيف.
إذا كنت تعتقد أن الصيف الحار على الأرض لا يطاق، تخيل العيش في عالم يغلي باستمرار! تعرف على المزيد عن كوكب الزهرة، الجحيم السماوي الأقرب إلينا، من خلال هذا الإنفوجرافيك المميز.
Crédits pour l'image : علي العذاري
Termes du glossaire en rapport : الفصول , كوكب الزهرة
Statuts de la traduction de la légende: Pas encore approuvé par un·e relecteur(rice)
Anglais
Légende d'image : This infographic is part of the "Simplifying Astronomy for Arabic Speakers" project, which aims to provide simplified scientific information about Venus, one of the most mysterious planets in our solar system.
Why Doesn’t Venus Have Seasons?
Venus is an exception among the planets when it comes to seasonal changes. Unlike Earth and Mars, which have a noticeable axial tilt, Venus’ axis is nearly parallel to its orbital plane around the Sun. This means that both hemispheres receive the same amount of solar radiation throughout the year, leading to a lack of distinct seasons like those experienced on Earth.
Extreme Temperatures
Venus is known as the hottest planet in the solar system, with surface temperatures reaching 462°C (864°F) during the day and dropping to -173°C (-280°F) at night. This extreme variation does not occur due to axial tilt or rotation but is primarily caused by Venus’ thick atmosphere, which is composed mostly of carbon dioxide. This composition creates a runaway greenhouse effect, making Venus even hotter than Mercury, despite being farther from the Sun.
The Impact of the Thick Atmosphere
Venus' dense atmosphere plays a major role in stabilizing its temperatures, as it traps solar heat and prevents it from escaping into space. As a result, Venus remains consistently hot, whether in daylight or nighttime.
Conclusion
Venus presents a unique environment in the solar system, where its structure and extreme conditions prevent it from experiencing seasons like Earth. This makes it a fascinating target for scientists seeking to understand how atmospheric composition influences climate and temperature changes over time. Studying Venus is not just about exploring a single planet—it provides valuable insights into the evolution of planetary atmospheres and climate systems across the universe.
Crédits pour l'image : Ali Al-Edhari
Termes du glossaire en rapport : Seasons , Venus
Le Bureau de l'astronomie pour l'éducation est hébergé par la Maison de l'astronomie sur le campus de l'Institut Max Planck d'astronomie à Heidelberg. Le Bureau de l'astronomie pour l'éducation est un bureau de l'Union Astronomique Internationale, avec un financement important des Fondations Klaus Tschira et Carl Zeiss. Les colloques Shaw-IAU sur l'astronomie pour l'éducation sont financés par la Fondation Shaw Prize.