mean sun
mean sun
Definition
mean sun
noun
Astron. a hypothetical sun thought of as moving uniformly along the celestial equator at a speed equal to the actual sun's average speed along the ecliptic: hypothesized as a basis for keeping time, because the actual sun does not travel along the ecliptic at a uniform rate
mean sun
Usage Examples
Adjective modifier
- hypothetical: The use of a hypothetical mean sun removes this effect.
Browse dictionary entries near mean sun
- mean-spirited
- mean solar time
- mean solar day
- mean opinion score
- mean income
- mean distance
- mean deviation
- mean
- mealybug
- mealy-mouthed
- mean time between failures
- mean time to repair
- meander
- meandering
- meanie
- meaning
- meaningful
- meaningless
- meanly
- meanness
