General astronomy

General astronomy

Industrie : Astronomie

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General astronomy

m1

Astronomie; l'astronomie générale

Total, integrated magnitude of a comet's head (meaning coma + nuclear condensation). This can be estimated visually, as the comet's "total visual magnitude". The variable m 1 is usually found in ...

The magnitude value measured (or predicted) for a comet's nuclear condensation. Note that the true comet nucleus is rarely, if ever, directly observed from the earth because of the large amount of ...

Magnitude

Astronomie; l'astronomie générale

The units used to describe brightness of astronomical objects. The smaller the numerical value, the brighter the object. The human eye can detect stars to 6th or 7th magnitude on a dark, clear night ...

météores

Astronomie; l'astronomie générale

Small rocky and/or icy particles that are swept up by the earth in its orbit about the sun. Also called "shooting stars", they travel across the sky in a very short time, from less than a second to ...

orbite

Astronomie; l'astronomie générale

Le chemin d'accès d'un objet sur un autre (utilisé ici pour un objet en orbite autour du soleil).

éléments orbitaux

Astronomie; l'astronomie générale

Parameters (numbers) that determine an object's location and motion in its orbit about another object. In the case of solar-system objects such as comets and planets, one must ultimately account for ...