انجمن علمی ستاره‌شناسى | United States America (US)

Create: 2023-11-17 Update: 2025-07-04 17:41:54

🌅 در زمانِ بعد از غروب یا قبل از طلوعِ خورشید، به‌علت زاویه مناسب ماهواره‌ها با تابش خورشید، نور به سمتِ زمین بازتاب شده و ماهواره‌ها در آسمان می‌درخشند.
🌠 این درخشندگی متغیر بوده و به عوامل زیادی مانند زاویه و بزرگی سطحِ بازتاب (ابعاد جسم)، ارتفاع مداری، مسیر گذر از افق ناظر، چرخشِ وضعی ماهواره و... بستگی دارد. مشاهده‌پذیری جسمِ فضایی، با اطلاع از مدار حرکت آن و مختصاتِ ناظر محاسبه می‌شود.
(تصویر: گذر ISS، شامگاه سه‌شنبه ۲۳ آبان ۱۴۰۲، دانشکده فیزیک)

🌐 سایتِ www.heavens-above.com از مهم ترین سایت‌های انتشار داده‌های رصدی دقیق اجرامِ سماوی و پدیده‌های نجومی است. برای اطلاعات بیشتر راجب گذرهای بعدی ایستگاه و اجرام دیگر می‌توانید به این سایت مراجعه کنید یا از اپلیکیشن Stellarium استفاده کنید.

✍ سعید کریمی
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انجمن علمی ستاره‌شناسى

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انجمن علمی ستاره‌شناسى

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🌅 در زمانِ بعد از غروب یا قبل از طلوعِ خورشید، به‌علت زاویه مناسب ماهواره‌ها با تابش خورشید، نور به سمتِ زمین بازتاب شده و ماهواره‌ها در آسمان می‌درخشند.

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