📡 نمایی فروسرخ از بزرگترین ماه منظومهٔ خورشیدی، «گانیمد» [Ganymede]، در اطراف سیارهٔ گازی مشتری؛ (تصویر ۱). @آسمان شب

Create: 2021-08-07 Update: 2025-06-28 20:35:39

📡 نمایی فروسرخ از بزرگترین ماه منظومهٔ خورشیدی، «گانیمد» [Ganymede]، در اطراف سیارهٔ گازی مشتری؛ (تصویر ۱).

فضاپیمای #جونو [Juno] در ۲۹ تیر ۱۴۰۰ نیز گذر نزدیکی از فاصلهٔ ۵۰۱۰۹ کیلومتری گانیمد داشت. پیش‌تر، در ۱۷ خرداد نیز از فاصلهٔ ۱۰۴۶ کیلومتریِ آن عبور و تصویربرداری کرده بود (تصویر ۲) [🔗]. در گذرهایِ نزدیک این امکان فراهم می‌شود تا اطلاعاتی از ساختار بیرونی-درونی کُره تهیه شود؛ با طیف فروسرخ، عمق ۵۰-۷۰ کیلومتری لایه‌های گازی سیارهٔ مشتری نیز مورد بررسی قرار می‌گیرد.

فضاپیمای جونو در ۱۴ مرداد ۱۳۹۰ (پنج آگوست ۲۰۱۱) به سمت سیارهٔ مشتری ارسال شد و اخیرا تولد ده سالگی‌اش بود! ۳۵ بار به دور مشتری گردش، و ۳ ترابایت اطلاعات ارسال کرده است. مأموریت برای ۵ سال دیگر تمدید شده و تعداد گردش‌ها به دور مشتری به ۴۲ خواهد رسید. —🌐— [پست قبل: 🔗]

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