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retrogradno kretanje

Backward (westward) motion of the planet among the stars, resulting from the fact that it is viewed from the moving earth. It is the motion that a planet has when its right ascension is decreasing. Each year, when Earth passes a superior planet, such as Mars, the planet appears to move backward for a short time. It is the same effect you see when two trains are running in the same direction on side by side tracks. The slower train appears to be moving backward.

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التحسين
  • نوع المصطلح: اسم
  • المرادف (المرادفات)
  • مسرد المصطلحات
  • المجال / النطاق: علم الفلك
  • الفئة: المريخ
  • Company: NASA
  • المنتج:
  • الاختصار-المختصر:
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retrogradno
الدوائية; أجهزة طبية; 

1. moving backward or against the usual direction of flow. 2. degenerating, deteriorating, or catabolic.

retrogradno
بيولوجيا; Neuroscience

Kretanje ili utjecaj koji se kreće od kraja aksona prema tijelu stanice.

zimski solsticij
علم الفلك; المريخ

The position on the ecliptic occupied by the sun about december 22 when it reaches its greatest southerly declination.

proljetna ravnodnevica
علم الفلك; المريخ

The position on the celestial sphere occupied by the sun on or about march 21 when its path on the ecliptic crosses the celestial equator going from south to north. This point is ...

ultraljubičasto zračenje
علم الفلك; المريخ

The invisible electromagnetic radiation beyond the violet end of the spectrum of visible light, of wavelengths ranging, roughly, from 4000 down to 400 angstroms.

Mars
علم الفلك; المريخ

Mars is the fourth planet from the Sun. Mars' diameter is 6,790 km and takes 687 days to orbit the Sun. Mars is named after the Roman god of war. In Eastern Asian cultures Mars is ...

atmosfera
علم الفلك; المريخ

The gaseous envelope surrounding a celestial body.

astronomska jedinica (AJ)
علم الفلك; المريخ

A measure for distances within the solar system, equal to the mean ditance of the earth from the sun, which is about 93,000,000 miles.

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