орбита

A telescope that uses as its primary optical element a lens. Binoculars are a type of refractor. In general, refractors are much more expensive to build and buy than are ...

рефлектор

Astronomia; Astronomia (generale)

A telescope that uses as its primary optical element a mirror. Nearly all large telescopes in use today by amateur and professional astronomers are reflecting telescopes.

фотометрија

Astronomia; Astronomia (generale)

In astronomy, the measurement of the light emitting from astronomical objects, generally in the visible or infrared bands, in which a specific or general wavelength band is ...

паралакса

Astronomia; Astronomia (generale)

The apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object (as from two different ...

метеори

Astronomia; Astronomia (generale)

Small rocky and/or icy particles that are swept up by the earth in its orbit about the sun. Also called "shooting stars", they travel across the sky in a very short time, from ...

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Sanja Milovanovic

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Sostenitori

Settore/Dominio: Prodotti per animali Categoria: Collari e guinzagli

Povodac

Поводац (поводник или ланац) је врста конопца (или неког другог материјала) који је повезан за врат или главу животиње како би је држао под контролом.