alfa-proces

alfa-proces

A hypothetical process of nucleosynthesis, which consisted of redistributing α-particles in the region from neon 20 to iron 56 (and perhaps slightly higher). The α-process has been replaced by explosive and nonexplosive C, O, and Si burning occurring in rapidly evolving or even explosive stages of stellar evolution which at higher temperatures and densities becomes the e-process.

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Settore/Dominio: Astronomia
Categoria: Astronomia (generale)
Company: Caltech
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proces

Servizi alle imprese; Gestione del progetto

A set of interrelated actions and activities performed to achieve a specified set of products, results, or services.

proces endotermik

Fisica; Fisica (generale)

The process in which heat is absorbed.

proces egzotermik

Fisica; Fisica (generale)

The process in which heat is evolved.

proces izobarik

Fisica; Fisica (generale)

In which pressure remains constant.

proces izotermal

Fisica; Fisica (generale)

In which temperature remains constant.

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Astronomia; Astronomia (generale)

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heliocentrik

Astronomia; Astronomia (generale)

Referring to the sun. A heliocentric orbit is one based on the sun as one of the two foci of the (elliptical) orbit (or as the center of a circular orbit); a heliocentric ...

datë juliane

Astronomia; Astronomia (generale)

The interval of time in days (and fraction of a day) since Greenwich noon on Jan. 1, 4713 BC. The JD is always half a day off from Universal Time, because the current definition ...

ekuinoks

Astronomia; Astronomia (generale)

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shtrirje

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 ...

pjerrësi

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 ...

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Termini in evidenza

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Sostenitori

Settore/Dominio: Vacanze Categoria: Festival

Viti i ri kinez

The most important of the traditional Chinese holidays, Chinese New Year represents the official start of the spring, beginning on the first day of ...