extinción atmosférica

extinción atmosférica

Decrease in the intensity of light from a celestial body due to absorption and scattering by the Earth's atmosphere. The extinction increases from the zenith to the horizon and affects short wavelengths more than long wavelengths, so that objects near the horizon appear redder than they are at the zenith.

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Vārdšķira: noun
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Nozare/domēns: Astronomy
Category: General astronomy
Company: Caltech
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extinción

Archaeology; Human evolution

The disappearance of a group in part or all of its range.

extinción

Archaeology; Evolution

The disappearance of a species or a population.

extinción

Natural environment; Water

La desaparición total de una especie debido a la falta de adaptación a los cambios ambientales.

extinción

Geography; Physical geography

Desaparición de una especie de toda su área de distribución geográfica o de una parte de ella. Véase, también, extinción de fondo y extinción masiva.

extinción

Biology; Genetics

When all the members of a clade or taxon die, the group is said to be extinct.

Sistema de Procesado de imágenes astronómicas

Astronomy; General astronomy

Developed by the National Radio Astronomy Observatory.

órbita

Astronomy; General astronomy

The path of one object about another (used here for an object orbiting the sun).

meteoros

Astronomy; General astronomy

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 ...

equinoccio

Astronomy; General astronomy

Either of the two points (vernal, autumnal) on the celestial sphere where the ecliptic (which is the apparent path of the sun on the sky) intersects the celestial equator. Due to ...

cometa

Astronomy; General astronomy

A celestial body orbiting the sun (though some may be ejected from the solar system by planetary perturbations) that displays (at least during a portion of its orbit) some ...

cenit

Astronomy; General astronomy

The point directly overhead in the sky.

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Nozare/domēns: Events Category: Disasters

Chernobyl

Desastre ocurrido en la central eléctrica de Chernobyl en 1986, donde uno de los cuatro reactores nucleares de la planta explotó, resultando al menos ...