equation of time


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equation of time

n.
The difference between time measured from the observed position of the sun and time measured from the position of the mean sun, caused by changes in the earth's orbital speed through the cycle of the seasons. It is the difference between time measured with a sundial and time measured with a clock.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

equation of time

n
(Horology) the difference between apparent solar time and mean solar time, being at a maximum in February (over 14 minutes) and November (over 16 minutes)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

equa′tion of time′



n.
apparent time minus mean solar time, ranging from minus 14 minutes in February to over 16 minutes in November.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Translations
Zeitgleichung
References in periodicals archive ?
A stunning piece of art front and back, this incredible piece displays hours, minutes, perpetual calendar, day/night indication, precision moonphase, age of the moon, running equation of time, sunrise and sunset, length of day and night, seasons, solstices, equinoxes and zodiacal signs, tide level indicator, Sun-Earth-Moon conjunction, opposition and quadrature, transparent celestial chart of the Northern Hemisphere with indication of the Milky Way, the ecliptic and the celestial equator, celestial time hours and minutes, tourbillon, 3-week power reserve (using 6 barrels), and power reserve indication.
In comparison, my 10-inch model is precise to the minute, after taking into account the equation of time and making a correction for longitude (both of which are engraved on the back).
So we do customise -- for instance for the Equation of Time, we can customise the back-case, but we haven't done it up to now.
Garvan Donnelly, trainer of Equation Of Time He got 8lb for winning last time out but I think he's progressive.
In 2010, Halter even created the Classic Janvier watch featuring the time, the moon cycle and the equation of time, to pay tribute to the master.
On the East and West sides of the plinth there are stainless steel plaques explaining the origin of the Equation of Time, or time correction value, and graphically depicting it as follows:
London, January 17 ( ANI ): Scientists have revealed that the reason behind dark mornings in January can be explained with a formula called the 'Equation of Time'.
DUNDALK: 6.15 Fitrah, 6.45 Hoppsan, 7.15 Six Of Hearts, 7.45 Caso Do Lago, 8.15 Fast In The Wind, 8.45 Equation Of Time, 9.15 The Black Devil.
8.15: CARDINAL PALACE (J A Heffernan, 14-1) 1; Paene Magnus (7-2f) 2; Equation Of Time (16-1) 3.
Only 30 of these special Panerai watches will be made and each client may choose exact coordinates for which the sunrise, sunset, and equation of time complications may be customised.
Platinum, considered to be the most precious of metals, has been chosen by Vacheron Constantin, another of the old haute horlogerie houses--with 255 years of watchmaking to their name--to encase the very complicated movements of the three Patrimony Traditionnelle models introduced in 2010; the Patrimony Traditionnelle Calibre 2253 includes astronomical complications such as the perpetual calendar, the times of sunrise and sunset and the equation of time. It has a running time of 14 days and only 10 numbered pieces will be produced in this limited edition.
Officine Panerai also showcased Luminor 1950 Ceramic 8 Days Chrono Monopulsante GMT (PAM00317), the Radiomir Tourbillon GMT 48 mm, Pink Gold (PAM00330), which feature the most sophisticated calibre from the entire Panerai collection, the P.2005 with tourbillon and the Luminor 1950 Equation of Time Tourbillon Titanio -- 50 mm (PAM00365), the most technically sophisticated wristwatch ever produced by Officine Panerai and a tribute to the genius of Galileo Galilei.