انجمن علمی ستاره‌شناسى | United States America (US)

Create: 2025-03-16 Update: 2025-06-30 09:30:03

📡 ماهواره‌های زمین‌ثابت (بخش اول)

❓ تاحالا با خود فکر کرده‌اید که چرا دیش‌های ارتباط ماهواره‌ای جهت‌گیری ثابتی دارند؟ مگر همه‌ی ماهواره‌ها با سرعت زیاد به دور زمین در چرخش نیستند⁉️

ماهواره‌های Geostationary با شعاع مداری 42 هزار کیلومتر بر روی صفحه‌ استوا زمین قرار گرفته‌اند و دارای دوره تناوب تقریبا برابر با حرکت وضعی زمین هستند. در نتیجه همواره برای همه ناظران زمینی مکان مشخص و ثابتی دارند.
علاوه بر موقعیت نسبی مشخص، از دیگر مزیت‌های این ماهواره‌ها ثبات مداری بخاطر ارتفاع زیاد از سطح زمین می‌باشد که بدون نیاز به پیشرانه می‌توانند سال‌ها مدار خود را حفظ کنند.

🔹 در شبیه‌ساز satvis.space 🌐 می‌توانید با تغییر گزینه‌های مختلف، به درک شهودی از این نوع مدار دست پیدا کنید. (گزینه استارلینک را فعال نکنید! بخاطر تعداد زیاد ماهواره سایت هنگ میکند!)
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🔭✨ انجمن علمی ستاره‌شناسی دانشگاه صنعتی اصفهان
💫 @astronomyiut

انجمن علمی ستاره‌شناسى

ماهواره‌های

Geostationary

با شعاع مداری 42 هزار کیلومتر بر روی صفحه‌ استوا زمین قرار گرفته‌اند و دارای دوره تناوب تقریبا برابر با حرکت وضعی زمین هستند. در نتیجه همواره برای همه ناظران زمینی مکان مشخص و ثابتی دارند.
علاوه بر موقعیت نسبی مشخص، از دیگر مزیت‌های این ماهواره‌ها ثبات مداری بخاطر ارتفاع زیاد از سطح زمین می‌باشد که بدون نیاز به پیشرانه می‌توانند سال‌ها مدار خود را حفظ کنند.

🔹 در شبیه‌ساز satvis.space 🌐 می‌توانید با تغییر گزینه‌های مختلف، به درک شهودی از این نوع مدار دست پیدا کنید. (گزینه استارلینک را فعال نکنید! بخاطر تعداد زیاد ماهواره سایت هنگ میکند!)
ـــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ
🔭✨ انجمن علمی ستاره‌شناسی دانشگاه صنعتی اصفهان
💫 @astronomyiut

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1.0K viewsedited Mar 16 at 16:16

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انجمن علمی ستاره‌شناسى

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📡 ماهواره‌های زمین‌ثابت (بخش اول)

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