aurora borealis

aurora borealis

an aurora ocurring in the northern hemisphere of the Earth

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Loại từ: noun
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Ngành nghề/Lĩnh vực: Astronomy
Category: General astronomy
Company: Caltech
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aurora

Physics; Atmospheric physics

Natural light displays in the sky, produced by the collision of solar wind particles and emission of photons from the Earth's upper atmosphere. The photons become ionized and ...

aurora

Geography; Physical geography

Multicolored lights that appear in the upper atmosphere (ionosphere) over the polar regions and visible from locations in the middle and high latitudes. Caused by the interaction ...

aurora

Astronomy; General astronomy

the light produced by excited atoms and ions in the upper atmosphere of a planet

aurora

Astronomy; Access control systems

A glow in a planet's ionosphere caused by the interaction between the planet's magnetic field and charged particles from the Sun.

aurora

History; Roman gods

perëndeshë e agimit në mitologjinë romake dhe poezinë latine.

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 ...

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Ngành nghề/Lĩnh vực: Literature Category: Novels

Cmimi Kombetar i Librit

American literary awards, running annually from 1950 to present. There are 4 awards, fiction, nonfiction, poetry, and young people's literature, with ...