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Mantle of gases round a star planet or moon, sometimes even forming the apparent surface of the body. For a body to retain an atmosphere depends on the body's gravity, and the temperature and composition of the gases. Mean atmospheric pressure at the surface is 10330 kg/m2, and is also referred to as atmosphere.

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نوع المصطلح: اسم
المرادف (المرادفات)
مسرد المصطلحات
المجال / النطاق: علم الفلك
الفئة: فلك عام
Company: Caltech
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علم الفلك; فلك عام

One of about a dozen of the strongest Fraunhofer lines seen in the Solar spectrum, the A band at 7600 angstoms is due to telluric lines of molecular oxygen in the Earth's ...

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علم الفلك; فلك عام

Star with spectral type A in which the spectrum of the Balmer lines of hydrogen attain their greatest strength. Helium lines can no longer be seen. Some metallic lines are ...

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علم الفلك; فلك عام

Trojan asteroid (60° ahead of Jupiter. It was the first Trojan to be discovered.

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علم الفلك; فلك عام

The number of protons in an atom's nucleus. This determines the type of element.

поляр шұғыласы

علم الفلك; فلك عام

the light produced by excited atoms and ions in the upper atmosphere of a planet

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علم الفلك; فلك عام

1) Angular distance from the north point eastward to the intersection of the celestial horizon with the vertical circle passing through the object and the zenith. 2) Directional ...

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المجال / النطاق: جغرافيا الفئة: البلدان والأقاليم

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Greek mountain and pilgrimage site, known as the birthplace of early Christian Orthodox monasticism, housing around 20 Eastern Orthodox monasteries. ...