General astronomy

General astronomy

Settore: Astronomia

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General astronomy

declinazione

Astronomia; Astronomia (generale)

One element of the astronomical coordinate system on the sky that is used by astronomers. Declination, which can be thought of as latitude on the earth projected onto the sky, is usually denoted by ...

allungamento

Astronomia; Astronomia (generale)

Angular distance of a celestial object from the sun in the sky. In standard ephemerides, this is usually denoted by the Greek letter epsilon (or by the abbreviation "Elong. "). A celestial (usually ...

equinozio

Astronomia; Astronomia (generale)

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 precession, this ...

estinzione, atmosferica

Astronomia; Astronomia (generale)

The diminishing of light from astronomical objects due to the earth's atmosphere, in which molecules (air, dust, etc. ) of the atmosphere absorb, reflect, and refract light before it reaches the ...

eliocentrico

Astronomia; Astronomia (generale)

Riferendosi al sole. Un'orbita eliocentrica è uno basato sul sole, come uno dei due fuochi dell'orbita (ellittica) o come il centro di un'orbita circolare; una grandezza eliocentrica è la luminosità ...

altitudine

Astronomia; Astronomia (generale)

The angular distance from the observer's horizon, usually taken to be that horizon that is unobstructed by natural or artificial features (such as mountains or buildings), measured directly up from ...