TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

ORBIT AROUND MOON [15 records]

Record 1 2024-02-15

English

Subject field(s)
  • Launching and Space Maneuvering
CONT

During each lunar mission, the SLS [space launch system] will launch the crew in Orion to space and help set them on course to venture to the Moon. To do this, the SLS must have enough power to perform a manoeuvre known as a trans-lunar injection. This manoeuvre accelerates the spacecraft from its orbit around Earth onto a trajectory toward the Moon.

French

Domaine(s)
  • Lancement et manœuvres dans l'espace
CONT

Lors de chaque mission Artemis, le SLS [système de lancement spatial] lancera Orion dans l'espace. Il aidera aussi à le propulser sur la bonne trajectoire vers la Lune : c'est ce qu'on appelle une insertion translunaire. Pour cette manœuvre, le SLS doit avoir la puissance nécessaire pour accélérer la vitesse du vaisseau spatial et le faire passer de son orbite autour de la Terre sur sa trajectoire en direction de la Lune.

Spanish

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Record 2 2024-01-31

English

Subject field(s)
  • Spacecraft
CONT

As astronauts live and work on Gateway to enable sustained exploration and research in deep space, their efforts will be made possible by the power and propulsion element(PPE). A foundational component of the lunar outpost and the most powerful solar electric spacecraft ever flown, PPE will provide Gateway with power and allow it to maintain its unique orbit around the Moon.

French

Domaine(s)
  • Engins spatiaux

Spanish

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Record 3 2023-09-28

English

Subject field(s)
  • The Moon (Astronomy)
DEF

… a full moon occurring near or at the time when the Moon is at the closest point in its orbit around Earth.

Key term(s)
  • super moon
  • super-moon

French

Domaine(s)
  • Lune (Astronomie)
CONT

La Lune est apparue légèrement plus grosse et plus brillante que d'habitude durant la nuit de mardi à mercredi. Ceux qui ont levé les yeux vers le ciel pouvaient ainsi observer une superlune. Ce terme est utilisé pour décrire une pleine lune à son périgée, c'est-à-dire quand elle est à sa plus petite distance de la Terre.

OBS

Le phénomène de superlune [...] se produit en moyenne de quatre à six fois par an.

Key term(s)
  • super lune
  • super-lune

Spanish

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Record 4 2021-07-14

English

Subject field(s)
  • Astronomy
DEF

A circumstance in which one body in orbit around another, such as the moon of a planet, rotates on its axis in the same time as it takes to complete one orbit.

OBS

As a result, the orbiting body keeps one face permanently turned towards the body about which it is orbiting. An example is the rotation of our own Moon, which arises because of the tidal effects of the Earth over a long period of time.

French

Domaine(s)
  • Astronomie
DEF

Rapport fixe qui existe entre la période de rotation d'un corps céleste et sa période de révolution, par suite de la déformation de ce corps céleste, elle-même due à l'attraction du corps autour duquel il gravite.

OBS

verrouillage gravitationnel : terme et définition publiés au Journal officiel de la République française le 6 juin 2014.

Spanish

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Record 5 2021-07-14

English

Subject field(s)
  • Launching and Space Maneuvering
DEF

A maneuver used in launching a spacecraft into, or descending from, an orbit around a celestial body such as a planet or a moon [based on] a trajectory optimization that uses gravity to steer the vehicle onto its desired trajectory.

French

Domaine(s)
  • Lancement et manœuvres dans l'espace
DEF

Basculement d'un lanceur qui consiste, lors de sa phase ascendante propulsée, à rendre son vecteur vitesse progressivement horizontal sous l'action combinée de la pesanteur et de la poussée, en maintenant l'angle d'incidence proche de zéro.

OBS

basculement optimisé : terme et définition publiés au Journal officiel de la République française le 25 juillet 2015.

Spanish

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Record 6 2019-04-03

English

Subject field(s)
  • Titles of Federal Government Programs (Canadian)
  • Interplanetary Space Exploration
OBS

The Canadian Space Agency is... launching a new initiative known as the Lunar Exploration Accelerator Program(LEAP). This program will prepare Canada's space sector for lunar exploration by offering a wide range of opportunities for Canadian science and technology activities in lunar orbit or on the Moon's surface. LEAP's objectives are to : enable Canadian businesses and academic institutions to develop and conduct science experiments designed for lunar conditions; advance and demonstrate innovative technologies on or around the Moon [and] evaluate potential deep-space medical technologies that will also provide direct benefits here on Earth.

Key term(s)
  • Lunar Exploration Accelerator Programme

French

Domaine(s)
  • Titres de programmes fédéraux (Gouvernement canadien)
  • Exploration interplanétaire
OBS

L'Agence spatiale canadienne lance [...] le Programme d'accélération de l'exploration lunaire. Dans le cadre de cette nouvelle initiative, le secteur spatial canadien aura de nombreuses possibilités de mener des activités scientifiques et technologiques en orbite autour de la Lune ou sur la surface lunaire. Le Programme d'accélération de l'exploration lunaire vise à : permettre aux entreprises et au milieu universitaire canadiens de mettre au point des expériences scientifiques et de les réaliser sur la Lune ou en orbite autour de la Lune; soutenir l'avancement de technologies novatrices et leur démonstration en vue de futures missions d'exploration lunaire [et] évaluer de possibles technologies médicales destinées à l'exploration de l'espace lointain, mais qui procureront aussi des avantages directs sur Terre.

Spanish

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Record 7 2017-12-01

English

Subject field(s)
  • Theoretical Astronomy
  • Spacecraft
CONT

The argument of pericenter, for example, is defined as follows. There is a line through space which is fixed by convention as a reference. If one body orbits another(for instance the Moon orbiting around the Earth) the argument of pericenter associated with this orbit is the angle in the plane of the orbit between the reference line and the closest point of the orbit to the focus. The angle described above is measured from the focus of the orbit and in the direction which the object orbits.

French

Domaine(s)
  • Astronomie théorique
  • Engins spatiaux
DEF

Angle ayant pour sommet le centre de masse du corps principal et dont les côtés passent respectivement par le nœud ascendant et le périastre.

Spanish

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Record 8 2014-04-14

English

Subject field(s)
  • The Moon (Astronomy)
CONT

As the moon moves eastwards in its orbit around the earth, the sunrise terminator crosses the nearside from east to west to produce a crescent moon. The crescent waxes to first quarter when the moon, at quadrature, is half illuminated, through a gibbous moon, and finally to full moon, when the moon is at opposition and the nearside is fully illuminated.

French

Domaine(s)
  • Lune (Astronomie)

Spanish

Campo(s) temático(s)
  • Luna (Astronomía)
DEF

[...] Luna [...] cuando más de la mitad de su disco se halla iluminado [...]

Save record 8

Record 9 2009-03-23

English

Subject field(s)
  • Astrophysics and Cosmography
DEF

The very near approach of one celestial object to another, as seen from a third body.

OBS

Usually it refers to the close approach of two planets together in the sky, or of the Moon to a star or planet as the Moon follows its monthly orbit around Earth, as seen by an observer located on Earth.

French

Domaine(s)
  • Astrophysique et cosmographie
CONT

Une conjonction de deux objets célestes [...] signifie que ces deux objets, vus depuis un troisième (généralement la Terre), apparaissent très proches l'un de l'autre dans le ciel.

Spanish

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Record 10 2008-07-23

English

Subject field(s)
  • Launching and Space Maneuvering
  • The Sun (Astronomy)
CONT

A heliocentric orbit is an orbit around the Sun. In our Solar System, all planets, comets, and asteroids are in such orbits, as are many artificial probes and pieces of debris. The Moon, by contrast, is not in a heliocentric orbit as it orbits the Earth.

French

Domaine(s)
  • Lancement et manœuvres dans l'espace
  • Soleil (Astronomie)
CONT

Une orbite héliocentrique est une orbite dans laquelle le Soleil est le corps le plus massif. Il s'agit par conséquent des orbites du système solaire, des planètes, de certaines comètes et de multiples astéroïdes, de même que de nombreuses sondes spatiales.

Spanish

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Record 11 2005-12-06

English

Subject field(s)
  • The Sun (Astronomy)
  • The Moon (Astronomy)
CONT

The variation of the direction in space is a conical motion, with vertex at the center of mass, around a perpendicular to the plane of the earth's orbit around the sun, in which the earth and the axis of rotation move together with no change in the position of the axis within the earth. This motion is caused by the gravitational attractions of the sun and the moon. The axis describes a sinuous conical surface at an irregularly varying rate; the motion is, therefore, represented as the resultant of a steady progressive motion in a circular cone of angular opening about 47°, called the "lunisolar precession"...

CONT

Equinoctial precession is a circular motion of Earth’s rotational axis with respect to the "fixed" stars, also known as lunisolar precession. It is caused by the torque of the Sun and Moon on the Earth’s rotational bulge.

French

Domaine(s)
  • Soleil (Astronomie)
  • Lune (Astronomie)
CONT

La précession, due à l'action du Soleil et de la Lune, s'appelle «précession luni-solaire».

OBS

lunisolaire : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

Spanish

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Record 12 2004-10-22

English

Subject field(s)
  • Launching and Space Maneuvering
CONT

GE envisions a 29-flight Apollo program spanning late 1963 to early 1968, which includes the following milestones: 1. Third quarter 1964 (flight 7): First unmanned Earth-orbital flight. 2. Second quarter 1965 (flight 11): First manned Earth-orbital flight. 3. First quarter 1966 (flight 21): First manned cislunar (150,000-mile elliptical Earth orbit) flight. 4. Fourth quarter 1966 (flight 23): First manned circumlunar (lunar swing-by) flight. 5. Second quarter 1967 (flight 26): First manned lunar orbital flight.

OBS

lunar orbit :Orbit of a spacecraft around the moon.

Key term(s)
  • moon orbital-flight
  • lunar orbital-flight

French

Domaine(s)
  • Lancement et manœuvres dans l'espace
CONT

11 de ces vols [Apollo] étaient liés à la conquête de la Lune : - 2 vols en orbite basse terrestre. - 2 vols en orbite lunaire. - 6 alunissages. - 1 vol circumlunaire.

Spanish

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Record 13 2000-08-01

English

Subject field(s)
  • Launching and Space Maneuvering
DEF

A trajectory which curves around the moon and returns to earth, if a spacecraft keeps following it instead of injecting itself into a lunar orbit.

French

Domaine(s)
  • Lancement et manœuvres dans l'espace

Spanish

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Record 14 1983-09-06

English

Subject field(s)
  • Astrophysics and Cosmography
OBS

A new moon occurs when the moon is at conjunction and the nearside is totally unilluminated by the sun. As the moon moves eastwards in its orbit around the earth, the sunrise terminator crosses the nearside from east to west to produce a crescent moon.

French

Domaine(s)
  • Astrophysique et cosmographie
OBS

On convient de faire commencer la lunaison quand la Lune est en conjonction avec le Soleil, donc invisible. C'est la Nouvelle Lune. Son fin croissant apparaît peu après.

Spanish

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Record 15 1977-09-12

English

Subject field(s)
  • The Moon (Astronomy)
  • Planets
  • Astronomy
OBS

"The libration in longitude" is caused by the failure of the moon's rotation and revolution to keep exactly in step throughout the month, although they come out together at the end. The rotation is nearly uniform, whereas the revolution in the elliptical orbit, is not uniform(...) Thus the moon seems to rock in an east-west direction, allowing us to see as much as 7 3/4 ° farther around in longitude at each edge than we could otherwise.

French

Domaine(s)
  • Lune (Astronomie)
  • Planètes
  • Astronomie
OBS

La libration en longitude est due à la rotation régulière de la Lune sur son axe alors que, d'après la deuxième loi de Kepler, son mouvement sur l'orbite est plus rapide au périgée et plus lent en apogée.

Spanish

Save record 15

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