solar day


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Related to solar day: mean solar day, Apparent solar day

solar day

n.
1. The time required for a single rotation of the earth on its axis with respect to the sun, varying slightly throughout the year due to variations in the earth's orbit and other factors.
2. A mean solar day.
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.

solar day

n
(Astronomy) the period of time during which the earth makes one complete revolution on its axis relative to the sun. See day6
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

day

(deɪ)

n.
1. the interval of light between two successive nights; the time between sunrise and sunset.
2. the light of day; daylight.
3.
a. Also called mean solar day. a division of time equal to 24 hours and representing the average length of the period during which the earth makes one rotation on its axis.
b. Also called solar day. a division of time equal to the time elapsed between two consecutive returns of the same terrestrial meridian to the sun.
c. a division of time equal to 24 hours but reckoned from one midnight to the next.
4. an analogous division of time for a planet other than the earth: the Martian day.
5. the portion of a day allotted to work: an eight-hour day.
6. (often cap.) a day having a particular purpose or observance: New Year's Day.
7. a time considered as propitious or opportune: His day will come.
8. Often, days. a particular era: in olden days.
9. Usu., days. period of life or activity: His days are numbered.
10. period of existence or influence; heyday: In my day we called them “hepcats.”
11. the contest or battle at hand: to win the day.
Idioms:
1. call it a day, to stop working for the rest of the day.
2. day in, day out, every day without fail; regularly. Also, day in and day out.
[before 950; Middle English; Old English dæg]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.solar day - time for Earth to make a complete rotation on its axissolar day - time for Earth to make a complete rotation on its axis; "two days later they left"; "they put on two performances every day"; "there are 30,000 passengers per day"
time unit, unit of time - a unit for measuring time periods
tomorrow - the day after today; "what are our tasks for tomorrow?"
today - the day that includes the present moment (as opposed to yesterday or tomorrow); "Today is beautiful"; "did you see today's newspaper?"
yesterday - the day immediately before today; "it was in yesterday's newspapers"
morrow - the next day; "whenever he arrives she leaves on the morrow"
eve - the day before; "he always arrives on the eve of her departure"
date, day of the month - the specified day of the month; "what is the date today?"
date - a particular day specified as the time something happens; "the date of the election is set by law"
daylight, daytime, day - the time after sunrise and before sunset while it is light outside; "the dawn turned night into day"; "it is easier to make the repairs in the daytime"
high noon, midday, noon, noonday, noontide, twelve noon - the middle of the day
night, nighttime, dark - the time after sunset and before sunrise while it is dark outside
60 minutes, hour, hr - a period of time equal to 1/24th of a day; "the job will take more than an hour"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
References in periodicals archive ?
International calls for standardized times, in place ofthe solar day, which resulted in local variations in time keeping, had also been building.
The simulation allows a variation of as much as two minutes within the time of a solar day. The simulation carried out is to reproduce an unusual feature, a planet-sized pattern, which may be an atmospheric wave that has been found in the upper atmosphere of Venus.
The highest temperature of the outside wall in one solar day is up to about 338 K at 02:00 pm.
1,000 earth days corresponds to 973.24 Mars Sols (Martian Solar day) and MOM completed 388 orbits," Isro said.
Green built and certified by the Florida Green Building Coalition, Stellar Homes Group will include an array of additional green features as standard beyond the solar panels in all new homes: passive solar day lighting through positioning of windows and doors to maximize natural light; hybrid water heaters (plus $300 federal tax credit) that deliver hot water 70 percent more efficiently through heat transfer; LED Lighting; low flow shower heads, toilet and sink faucets, Zero VOC Sherwin Williams paint sealants and adhesives and Maxxon's Underlayment for all floors upstairs that are GREENGUARD Gold Certified meeting the most stringent product emission criteria in the market for healthier breathing air.
an increase in d/dt([theta](t)) at sunrise, a decrease at sunset and a maximum deflection at noon) [1,2], having a period length of 1440.24 [+ or -] 2.60 min [2], indicating that it is related to solar and not sidereal time (length of sidereal day: 1436 min, solar day: 1440 min).
Cycles in Nature: The Solar Day, the Lunar Cycle, and the Tidal Force
The reason is that a solar day is not exactly 24 hours.
The 24-hour mean solar day is the period between successive occasions when the sun is directly overhead.
Nearly all life on Earth has an internal circadian body clock that keeps us ticking on a 24-hour cycle, synchronizing a variety of bodily functions such as sleeping and eating with the cycle of light and dark in a solar day. When we travel to a different time zone our body clock eventually adjusts to the local time.
"What's remarkable is how, when we're exposed to natural sunlight, our clocks perfectly become in synch in less than a week to the solar day," CU-Boulder integrative physiology Professor Kenneth Wright, who led the study, said.
Tan-y-Wawr, the official Welsh solar car, set the South African record for the longest distance covered in a solar day as it came third overall in the FIA Olympia class at the Sasol Solar Challenge.