zenit

zenit

The point of the celestial sphere directly overhead, 90 degrees above the horizon, for any point on earth; it is the point where a plumb line extended upward would intersect the celestial sphere.

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التحسين

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نوع المصطلح: اسم
المرادف (المرادفات)
مسرد المصطلحات
المجال / النطاق: علم الفلك
الفئة: المريخ
Company: NASA
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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 ...

ultravioletno 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.

topografija

علم الفلك; المريخ

The configuration of a land surface, including its relief.

masa

علم الفلك; المريخ

The amount of matter in a body, which should not be confused with weight. The same object will have different weights in space and earth but the mass remains constant.

džul

علم الفلك; المريخ

The s. I. Unit of energy, work, or quantity of heat. It is the force of one newton acting over a distance of a meter.

crno tijelo

علم الفلك; المريخ

An ideal or imaginary body that is absolutely black when cold, but is a perfect absorber of radiation and at the same time a perfect radiator. Black body temperatures are used to ...

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ivysa

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متابعين

المجال / النطاق: حيوانات الفئة: الأفاعي

kobra

A highly venomous snake from the elapidae family native to Asia and Africa. When alarmed, a cobra raises its head and expands the skin of the neck to ...