негравитациони сили

негравитациони сили

Forces that alter the path of a comet, which are not caused by gravitational interaction with the Sun and planets. Typically this refers to uneven outgassing from vents on the comet, which serve to act like rocket nozzles.

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분야/도메인: 천문학
카테고리: 행성학
Company: PSRD
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метеорит

천문학; 행성학

A natural solid object (metallic or stony/silicate) larger than 10 µm (microns) that has traveled through space, by natural means from the celestial body on which it formed, and ...

хелиум

천문학; 행성학

An element with atomic number 2; symbol: He. It is the second most common element in the Sun and outer planets, but rare on the rocky planets.

кратер

천문학; 행성학

A hole or depression. Most are roughly circular or oval in outline. On Earth most natural craters are of volcanic origin. On the Moon most are of impact origin.

магматски океан

천문학; 행성학

Term used to describe the layer of magma, hundreds of kilometers thick; thought to have covered the Moon 4. 5 billion years ago. The timing, duration, cooling rates, convection, ...

астронаут

천문학; 행성학

Person engaged in or trained for spaceflight.

азот

천문학; 행성학

An element with atomic number 7; symbol: N. It is common in Earth's atmosphere and along with hydrogen, carbon, and oxygen is essential for life.

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Синодот

Средба на епископите на црковните провинција или патријаршија (или дури и од целиот свет, Е. Г., Синодот на Епископите) да се разговара за научни и ...