perihelion paraprak

perihelion paraprak

The slow rotation of the major axis of a planet's orbit in the same direction as the revolution of the planet itself, due to gravitational interactions with other planets and/or other effects (such as those due to general relativity.)

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Industry/Domain: Astronomy
Category: General astronomy
Company: Caltech
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Related terms

perihelion

Astronomy; Mars

The point in the orbit of a planet where it is nearest to the sun.

perihelion

Astronomy; General astronomy

The point where (and when) an object orbiting the sun is closest to the sun.

paraprake perde

Performing arts; Theatre

A one-act play performed before the main play in the 19th Century.

përcaktim paraprak

Legal services; Patent & trademark

designation of a Contracting State in an international application filed under the Patent Cooperation Treaty which must be confirmed prior to 15 months from the priority date.

përvetësim paraprak

Natural environment; Water

një doktrinë e ligjit të ujit që ndan të drejtat për të përdorur ujin i pari në kohë, i pari në të djathtë,ne bazë.

vit julian

Astronomy; General astronomy

Exactly 365. 25 days, in which a century (100 years) is exactly 36525 days and in which 1900. 0 corresponds exactly to 1900 January 0. 5 (from the Julian-date system, which is ...

heliocentrik

Astronomy; General astronomy

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

Astronomy; General astronomy

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

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 ...

shtrirje

Astronomy; General astronomy

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

Astronomy; General astronomy

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 ...