
	Where results make sense

Topic: Synodic day

	Rotation Period and Day Length
		As shown in the table, the rotation period and day length are nearly identical for all of the outer planets.
		To explain why the day length, or synodic period of rotation, is different from the sidereal period of rotation, we consider how a given place moves around a planet, and the way in which this changes its view of the sky, during one rotation period.
		For the second method, we divide the rotation period by the number of days in a year, and obtain 2 minutes 12.58 seconds as the difference between the rotation period and the length of the day, so that the day length would be 24 hours 39 minutes 35.24 seconds.
	www.cseligman.com /text/sky/rotationvsday.htm (2763 words)

	Trivishtapam - Calendar - Astronomical - Lunar Month
		The mean length of a lunar synodic month is 29.53059 civil solar days (of 24 hours exactly) and divided by 30 this gives the lunar synodic day a mean length of 0.984353 civil solar days.
		I note that the choice of 30 synodic days and 27 sidereal days (and before that, of 27 asterism segments) in the respective months was made so that the length of each day would be closest to the length of the solar day.
		Apart from that, it is obvious to the observer that a lunar synodic day can be entirely contained within a solar day so that at the start of today the synodic day number, called tithi can be 10 and at the start of tomorrow 12, day 11 being entirely contained within today.
	www.samvit.org /calendar/astro/lunmon.html (858 words)

	Planets Testify
		The sidereal period of Mars is 687 days (686.99576 days) and the synodic period is 780 days (779.93651 days).
		The synodic period of Mars is in a 4:3 ratio with Venus.
		The sidereal period of Mercury is 87.969 days and of Venus is 224.701 days, which have a ratio of 2.554.
	www.johnpratt.com /items/docs/lds/meridian/2004/planets.html (5368 words)

	Analemma - Wikipedia, the free encyclopedia
		Analemma (pronounced [ˌænəˈlɛmə]) is a term in astronomy used to describe the plot of the positions of the Sun on the celestial sphere at the same time of day (at approximately 24 hour intervals) and from the same location on Earth on successive days through the calendar year.
		The vertical coordinate of a point corresponding to a date corresponds to the declination of the sun on that date, while the horizontal coordinate indicates whether the sun is "fast" or "slow" compared to mean time as measured by clocks.
		The deviation between solar time and mean time is known as the equation of time and is due to the variation in the length of the synodic day, which is due to variation in the distance between the earth and the sun.
	en.wikipedia.org /wiki/Analemma (757 words)

	INTERNATIONAL INSTITUTE OF ASTROARCHAEOLOGY : SOME MOON RHYTHMS (Site not responding. Last check: 2007-10-31)
		The synodic period is longer than the tropical period because after the moon has left its position opposite the sun (full moon), it has to travel more than a complete orbit to be opposite the sun again (full moon), because the earth-moon system has moved a bit along its orbit in the meantime.
		They show, for 19 years, the difference in number of days between, in the first chart, the number of whole synodic moons in the year and the year and in the second, the number of whole synodic moons in the year and the number of whole tropical moons in the year.
		So, in the fifth year of a Metonic cycle, the synodic ‘year’ is out of phase with the solar year by a little over 4 days, but the synodic ‘year’ is out of phase with the tropical ‘year’ by less than half a day.
	www.astroarchaeology.org /context/sunmoon (8500 words)

	Synodic day - Wikipedia, the free encyclopedia
		A synodic day is the period of time it takes for a planet to rotate once in relation to the body it is orbiting (as opposed to a sidereal day which is one complete rotation in relation to the stars).
		For Earth, this is known as a Solar day, and is 24hrs long.
		This page was last modified 18:39, 18 March 2006.
	en.wikipedia.org /wiki/Synodic_day (85 words)

	The Reckoning Systems of Ancient Mesoamerica day-count and constant numbers:
		For the 90 cycles of the 260c are equal to 104 cycles of the 225c; both equaling 23400 days.
		However, as we have seen, the cycle numbers (52, 65, 104, etc.) are interchangeable, depending upon whether one is measuring cycles of the synodic orbit of Venus or of its sidereal orbit.
		With this example, and the previous one, it is rather obvious that the interrelatedness of the different systems follows a stric logic in agreement with the day-count numbers, the cycle numbers, and the constant numbers, as we have been attempting to illustrate.
	www.earthmatrix.com /orbital/planetary.htm (2546 words)

	Trivishtapam - Calendar - Astronomical - Hindu Lunar
		The lunar synodic day active at sunrise which is the beginning of a Hindu solar day is said to be the tithi of the solar day.
		Similarly, the lunar sidereal day active at sunrise is the naks'atra of the solar day.
		In the case of two solar days having the same tithi, the latter is said to be an adhika tithi or extra tithi.
	www.samvit.org /calendar/astro/hlc.html (967 words)

	Astronomy 10: Lecture 4 (Site not responding. Last check: 2007-10-31)
		The Solar Day on Earth is in fact a Synodic Day.
		But again during that one day Earth has moved in its orbit (about 1°) and as seen in the Sidereal frame of reference it completes one spin before the Sun can again be in position to transit.
		The Sidereal day, the actual time it takes Earth to complete one spin and the time between consecutive transits of any given star is about 23 hours and 56 minutes.
	cse.ssl.berkeley.edu /bmendez/ay10/2002/notes/lec4.html (2233 words)

	Venus and the Mayan Calendar Round
		This total of 360 days was extended by the addition each year of 5 "nameless" days, designated by the term Uayeb, at the end of the sequence of "named" days.
		The Venus table, which has a different first day (3 Cib 9 Zac) from the CR (1 Imix 9 Pop), is exactly twice as long as the Calendar Round and therefore covers a period of 37,960 days, or 104 Mayan solar years and 65 synodic periods of Venus.
		In fact, on the base-day, Venus was 235 days away from its superior conjunction with the sun, which occurred on May 20, 566 A. D., or, put another way, one day prior to the first day of the Venus table's sequence on 3 Cib 9 Zac (May 21, 566 A.D.).
	mayanastro.freeservers.com /mayan5.html (1646 words)

	Primary 162 Year Age of Jared
		It follows that the synodic arc from one heliacal rising to the next ---the actual synodic arc, as opposed to the mean synodic arc mentioned above--- will be (as we would say) a function of the location of the phenomenon in the Zodiac.
		Apparently, Sirius cannot be seen 35 days prior and 35 days after the Sirius-Sun conjunction, and in ancient Egypt these were the days were no funerals took place, for it was believed that Sirius was the gateway to heaven, and if would be closed in these 70 days.
		The parity of numerically matching 260 days per sacred year with 260 years per sacred cycle is drawn to respond 130 days greater than the recorded primary age for Jared.
	www.timeemits.com /hoh/pri162yjared.htm (4890 words)

	index
		The first day of the second trecena, 1-Ocelot, is the fourteenth day of the Fixed Round of Days and the last day of the second trecena, 13-Death, is the sixth day of the Fixed Round of Days.
		solar days is offset by 203 leap days skipped by the solar calendar with an accumulated error of less than a quarter of a day in reference to a 584 day synodic cycle.
		A synodic cycle of Venus is 583.92 solar days, a Tropic revolution of Venus is 224.695 solar days and earth’s Tropic revolution is 365.24219878.
	homepage.mac.com /villas1/Calendar (11908 words)

	Chapter 1, More Precisely 1-3 (Site not responding. Last check: 2007-10-31)
		The solution is to define a mean solar day, originally cast in terms of a fictitious mean Sun that moves around the celestial equator at constant speed, but which in effect is just the average solar day over an entire year.
		The basic problem with all this is that a synodic (lunar) month does not contain a whole number of mean solar days, and the tropical year does not contain a whole number of months or days.
		The solution is to vary the number of days in the year, much as early calendars varied the number of days in the month, to ensure the correct average length of the year.
	www.pfm.howard.edu /astronomy/Chaisson/AT401/HTML/MP0103.htm (1098 words)

	Synodic period
		synodic period of Jupiter is determined to be c.
		With synodic period the angle P-S-Q gradually opens (and then closes); S is the point, around which motion of bodies P,Q happens (centre of gravity).
		Space, at which synodic periods act, is determined only by periods P and Q and does not have any direct reflection in motion around centre.
	www.sweb.cz /vladimir_ladma/english/cycles/reson/synodp.htm (811 words)

	One Reed: A Mesoamerican Horoscope (Site not responding. Last check: 2007-10-31)
		The approximate average synodic periods of the planets in days are: Moon: 29.5, Mercury: 115.9, Venus: 583.9, Mars: 780, Jupiter: 398.9, Saturn: 378.1, Uranus: 369.7, Neptune: 367.5, Pluto (varies over the years): 366.7.
		For example, on the 1992 election day, Mercury was exactly in the same phase of its 116-day synodic period as was Jupiter at Clinton's birth.
		That is, Saturn was 50% ahead in its synodic cycle at the time of the election as Mercury was in its synodic cycle at his birth.
	www.onereed.com /articles/mesohoro.html (2601 words)

	[No title]
		(defun lunar-longitude (days) ;; Mean sidereal longitude of the moon, in degrees, ;; at date and fraction of day $days$.
		(* (mod (/ days lunar-sidereal-month) 1) 360)) (defun lunar-phase (days) ;; Longitudinal distance between the sun and the moon, as an integer ;; in the range 1..30, at date and fraction of day $days$.
		(1+ (quotient (mod (- (lunar-longitude days) (solar-longitude days)) 360) 12))) (defun new-moon (days) ;; Time of the most recent mean conjunction at or before ;; date and fraction of day $days$.
	emr.cs.iit.edu /~reingold/calendar.l (1517 words)

	Celestial Sphere
		Days are longest in the summer for the northern hemisphere due to tilt of the Earth's axis allowing for more sunlight to be projected onto surface.
		A `day' is defined by the rotation of object in question.
		For example, noon, midnight, twilight are all examples of synodic time based on where the Sun is in the sky (e.g.
	zebu.uoregon.edu /~js/ast121/lectures/MWF/lec03.html (984 words)

	Meridian Magazine :: Science and Religion :: The Planets Testify of the Creator
		In case you don't understanding that reasoning, the main point is that the sidereal period of 225 days is very different from its synodic period of 584 days.
		/63 days, so after 7 x 9 years, the orbital period comes out to be exact in days.
		http://www.johnpratt.com/items/calendar/calcalc/datelist.html), I use the notation "1 Light 1" where the first "1" refers to the day of the trecena, "Light" is the day of the vientena, and the final "1" is the day of the novena.
	www.meridianmagazine.com /sci_rel/040414planets.html (5463 words)

	Shamanic Astrology Articles - New Venus Synodic Cycle Begins - by Daniel Giamario (Site not responding. Last check: 2007-10-31)
		On or about January 22, 1998, Venus began a new 584 day "synodic" cycle.* Depending on your location and the visibility of the horizon, Venus appeared brightly and dramatically just before sunrise over the Eastern horizon.
		In January, 1998, Venus rose in the sign of Capricorn (22 degrees), beginning a new 584 day journey of the world feminine principle: the goddess for women, and the animas, or internal source of creativity and eros, for men.
		Her transition and the days that followed have contributed to an amazing story about the conscious death process and the miracles that followed.
	www.shamanicastrology.com /articles02.htm (530 words)

	The Lunar Planner: Hurricane Katrina
		Uranus, centering around Aug 31, in the midst of its retrograde, ends its previous 370-day synodic cycle and beings its next in mid-sidereal Aquarius (its domicile) conjoining Zeta Aquarius, On the Urn of the gushing waters, and Skat, Delta Aquarius, the shin bone of the Waternan, star of the (humanitarian) foundation.
		The Uranus synodic cycle transition occurs when the Sun and Uranus are opposite as seen from Earth.
		The theme of this new year-long synodic cycle is defined by the stellar field that Pluto and Earth lie within when looking from the Sun.
	www.lunarplanner.com /Snippets/snippet.05.08.30.html (555 words)

	Earth-Moon Dynamics (Site not responding. Last check: 2007-10-31)
		The present equatorial sun rotation period is slightly larger than 25 mean days, and the value 25.12694896 mean days defines exactly the present earth distance: 149,597,870 km.
		Knowing the value of initial earth rotation period, we can calculate to define the value of the initial synodic day (sidereal year/synodic day) + 1 = (sidereal year/sidereal day), it was found to be about 4 hours only which is a plausible value in relation to the expected one by other ways.
		To avoid the mass M changes effect; it may be considered hence the fundamental law in astrophysics of the circular motion is achieved, which is conservation of angular momentum, confirming conserved dynamics of earth-moon system.
	www.speed-light.info /preserved_dynamics.htm (2992 words)

	The Iridian Language Institute's Journal
		Also: All these numbers are based on the assumption that a Synodic Month is 29.53 days.
		Leave it at this: The basic unit of Iridian time is the synodic month, or Iridian month, which is the time it takes the moon to make one full cycle through its phases.
		Each Iridian day is divided into 24 Iridian hours, each Iridian hour into 36 Iridian minutes, each Iridian minute into 144 Iridian seconds.
	community.livejournal.com /iridian (1224 words)

	GLOBAL VISION : IRELAND : ASTROARCHAEOLOGY (Site not responding. Last check: 2007-10-31)
		The synodic moon is the moon of the phases.
		There’s less than 1 day, less than 3/4 of a day between 19 years and 235 synodic months.
		In other words, in our example for 5 years, if you take 4.6854452 days and divide that by.350495 days, you get 13.36808.
	www.global-vision.org /ireland/stones/sunmoon/index.html (8500 words)

	A Created Solar System
		The clear indication of arranged time structures points to the ultimate possibility that units of the solar day, the synodic month, and the solar year are components or elements of a time-tracking system that is fully interrelated.
		A satisfactory systems view of the rates of solar days, lunar phases, and solar years is not only possible but an interpretation of interrelated time design seems quite easy to comprehend.
		It is very clear that rates of days, lunar phases, and years may represent codependent rates (or more than independent rates).
	www.creation-answers.com (421 words)

	Massachusetts Bay Trading Co. : : About Our Tide Clocks
		While there are always two high and two low tides per day, in some locations, such as the China Sea and parts of the Gulf of Mexico, the second high and low tides are so small that there appears to be only one high and low tide per day.
		On the day of a full moon, insert your battery precisely at the time of high tide according to your local tide tables.
		The lunar day, the time it takes for the moon to reappear at the same place in the sky, is 24 hours and 50 minutes.
	massbaytrading.com /TideClocks.htm (965 words)

	Astronomy 10: The Sidereal Day (Site not responding. Last check: 2007-10-31)
		You will observe for yourself the difference between a solar (synodic) day and a sidereal one, and you will even predict the length of a sidereal year.
		You need not observe every single day, but you should make at least 3 observations on consecutive days, and you should observe on a minimum of 10 days.
		We will discuss in class that the sidereal day (the time for a star to make one complete circuit in the sky) is different from the mean solar day.
	cse.ssl.berkeley.edu /bmendez/ay10/2000/projects/sidereal.html (618 words)

	Antarctic fossil Questions
		They document changes in the decay constant and in chemical reaction rates that correlate with moonrise/moonset, eclipses, the sidereal and synodic day, the year, and the sunspot cycle.
		The synodic day variations (sunrise to sunrise) would correlate to the Sun's electric currents, while the sidereal day variations (from star-rise to star-rise, just under four minutes shorter than the synodic day) would correlate to something from beyond the solar system, such as the galactic electric currents.
		The decay rate spike occurs immediately after the solar activity, or 2 to 3 days before the solar wind arrives to change the Earth's geomagnetic field.
	www.thunderbolts.info /tpod/2004/arch/041129antarctic-fossil.htm (613 words)

	"Solar Arc Directions: Symbolic directions or astronomical reality?": L Blake Finley, M.A.: Uranian Astrology: ...
		"This includes, namely, a synodic day, which from the culmination of the lower meridians to culmination with the Sun on the following day, corresponds to 361 degrees, which is the natural square of 19.
		"In each year of life, where a single synodic day corresponds to the following month, the Sun gains about one degree, and thus the solar arc increases with in correlation with the apparently orbiting Sun, so that in 60 years, roughly 60 degrees must be added to correspond to the age of a 60-year-old man.
		Witte points out that the yearly motion of the Sun is in fact nearer to 361° than 360°, and this difference of approximately 1°, and astronomical reality, serves as the mathematical base for Solar Arc directions.
	finblake.home.mindspring.com /bfsolarc.htm (653 words)

	PHYS 1070
		synodic day is defined as the time between successive
		sidereal day is the time between successive transits of a star and is about 23
		This difference between the length of the solar and sidereal days results in the steady E → W progression of the stars/constellations; one full rotation in about 360 days (1 yr).
	www.yorku.ca /pdelaney/phys1070/f05/web/phys1070-2.htm (857 words)

Try your search on: Qwika (all wikis)