General astronomy

General astronomy

Especialidad: Astronomía

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General astronomy

elemento atmophile

Astronomía; Astronomía general

elemento volátil que suele encontrarse en la atmósfera de un planeta o asteroide

Refiriéndose al sol. Una órbita heliocéntrica es uno basado en el sol como uno de los dos focos de la órbita (elíptica) (o el centro de una órbita circular); una magnitud heliocéntrica es el brillo ...

fecha juliana (JD)

Astronomía; Astronomía general

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 of JD was introduced ...

extinción atmosférica

Astronomía; Astronomía general

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 ...

tiempo de efemérides (ET)

Astronomía; Astronomía general

Determined in principle from the sun's apparent annual motion, ET is the numerical measure of uniform time, which is the independent variable in the gravitational theory of the earth's orbital ...

efemérides

Astronomía; Astronomía general

A table listing specific data of a moving object, as a function of time. Ephemerides usually contain right ascension ("R. A. " in these web pages) and declination ("Decl. " in these web pages), ...

alargamiento

Astronomía; Astronomía general

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 ...