TERMIUM Plus®

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

TEMPS SOLAIRE MOYEN [3 records]

Record 1 2015-05-20

English

Subject field(s)
  • The Sun (Astronomy)
  • Calculating Procedures (Mathematics)
DEF

Time that is based on the motion of the mean Sun and that has the mean solar second as its unit.

CONT

Since the length of the day as determined by the Sun is variable, it is desirable to introduce a fictitious body, the "mean Sun," whose right ascension increases at a (very nearly) uniform rate given by the Sun's mean motion. The "mean solar time" is the hour angle of the mean Sun plus 12 hours.

French

Domaine(s)
  • Soleil (Astronomie)
  • Procédés de calcul (Mathématiques)
CONT

Le temps entre le passage inférieur du Soleil équatorial moyen et toute autre de ses positions, exprimé en fractions du jour solaire moyen (heures, minutes, secondes moyennes), s'appelle «temps solaire moyen» ou simplement «temps moyen» [...] Au méridien donné, à un instant quelconque, le temps moyen [...] est numériquement égal à l'angle horaire [...] du Soleil équatorial moyen, exprimé en heures, plus 12 heures [...]

Spanish

Record saved

Record 2 2010-07-13

English

Subject field(s)
  • The Sun (Astronomy)

French

Domaine(s)
  • Soleil (Astronomie)
DEF

Temps déduit du temps solaire par correction de ses inégalités séculaires et périodiques.

CONT

Contrairement au temps solaire vrai, le temps solaire moyen d'un lieu constitue (aux irrégularités de rotation de la terre près) une échelle de temps, dont l'origine est à midi.

Spanish

Save record 2

Record 3 1994-02-16

English

Subject field(s)
  • Air Transport

French

Domaine(s)
  • Transport aérien

Spanish

Campo(s) temático(s)
  • Transporte aéreo
Save record 3

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