напредување на перихелион

напредување на перихелион

The slow rotation of the major axis of a planet's orbit in the same direction as the revolution of the planet itself, due to gravitational interactions with other planets and/or other effects (such as those due to general relativity.)

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분야/도메인: 천문학
카테고리: 일반 천문학
Company: Caltech
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напредување

교육; 교수

The movement from one educational stage or developmental level to another.

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언어; 사전

Function words; preposition; touching a surface or an object.

ахроматска леќа

천문학; 일반 천문학

Lens (or combination of lenses) that brings different wavelenghts within a ray of light to a single focus, thus overcoming chromatic aberration. It was first successfully made by ...

активна галаксија

천문학; 일반 천문학

1) Active galactic nuclei are very luminous. Their energy output is in two forms: nonthermal continuum and thermal emission line. 2) Any galaxy which is emitting large quantities ...

активна оптика

천문학; 일반 천문학

Controlling the shape of a telescope mirror at a relatively slow rate.

единица на забрзување

천문학; 일반 천문학

A unit for measuring acceleration, which is metre per second squared.

зголемување

천문학; 일반 천문학

1) A process by which a star accumulates matter as it moves through a dense cloud of interstellar gas; or, more generally, whereby matter surrounding a star flows toward it (as in ...