Mean Sun: A fictitious sun which is assumed to move in the celestial equator at a uniform speed corresponding to the average angular speed of the real Sun in the ecliptic, the mean sun being alternately in advance and behind the real Sun. It is used as a reference for reckoning mean time, noon of mean local time corresponding to the time of the transit of the mean sun over the local meridian. See equation of time and mean time.

 

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Mean Sun: A fictitious sun which is assumed to move in the celestial equator at a uniform speed corresponding to the average angular speed of the real Sun in the ecliptic, the mean sun being alternate . . . View Full Definition

Mean Time: Time based upon the hour angle of the mean sun as distinguished from apparent time which is based upon the position of the real Sun. The difference between apparent and mean time is known as . . . View Full Definition

Sun Grown: Describes coffee that is not grown under a shade canopy. Arabica coffee is traditionally grown in shade in many (but not all) parts of Mexico, Central America, Colombia, Peru, and Venezuela, . . . View Full Definition

Root Mean Squared (RMS): A term used to indicate the average level of power that a receiver or amplifier can sustain over a given period of time. Average power ratings (ex: 100 watts RMS) provide a more realistic as . . . View Full Definition