corrector de dispersión atmosférica

corrector de dispersión atmosférica

An optical device usually comprising two thin prisms which can rotate to compensate for the elongation of a star image caused by the wavelength dependence of the refractive index of air.

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Industri / Domain: Astronomi
Kategori: Astronomi secara umum
Company: Caltech
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Developed by the National Radio Astronomy Observatory.

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Astronomi; Astronomi secara umum

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

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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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Astronomi; Astronomi secara umum

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

Astronomi; Astronomi secara umum

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 ...