cuadratura

cuadratura

Two bodies are in quadrature when their difference in celestial longitude is 90 degrees. This is the position of a superior planet when its elongation is 90 degrees, east or west, depending on the direction of the planet from the sun.

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التحسين

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نوع المصطلح: اسم
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المجال / النطاق: علم الفلك
الفئة: المريخ
Company: NASA
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Marte

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 ...

Fobos

علم الفلك; المريخ

The larger and innermost of the planet Mars' two moons. Phobos was discovered by Asaph Hall on August 17, 1877. In Greek mythology, Phobos was the son of Ares (Mars) and Aphrodite ...

radiación ultravioleta

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.

solsticio de invierno

علم الفلك; المريخ

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

rayos X

علم الفلك; المريخ

Very short wavelength radiations beyond the ultraviolet in the spectrum, which are about one ten-thousandth as long as the visible violet and are extremely penetrating.

cenit

علم الفلك; المريخ

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 ...

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Gabriela Lozano

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المجال / النطاق: لياقة بدنية الفئة: حمية

dieta de los 17 días

The 17 Day Diet is a diet created by Mike Moreno, a family medicine doctor based in San Diego, CA, USA. The book, titled after the same name as the ...