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Topic: Synodic period

Related Topics

Orbital period

Orbit

Orbital speed

Synodic month

Semimajor axis

Inferior planet

Geosynchronous orbit derivation

Line of nodes

Sidereal day

Astronomical opposition

Sidereal year

Astrodynamics

Mercury (planet)

Sidereal time

Aphelion

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	Bardos: Dark, Clear, Luminous
		The 29.5 day synodic period of the Moon, multiplied by the number of days in Earth's year, is close to the 29.5 year sidereal period of Saturn.
		The sunspot half-period of 11 years is roughly the 11.86 year sidereal period of Jupiter.
		Clifford periodicity and homotopy periodicity are closely related.
	valdostamuseum.org /hamsmith/Bardo.html (3315 words)

	synodic period - Encyclopedia.com
		synodic period, in astronomy, length of time during which a body in the solar system makes one orbit of the sun relative to the earth, i.e., returns to the same elongation.
		This period, called the Metonic cycle, was discovered by the Greek astronomer Meton in 433 BC It is used in determining the date of Easter in the Gregorian calendar and was used in placing the intercalary month in the ancient Greek calendar.
		For the inferior planets the synodic period is longer than the sidereal period, but for the superior planets it is shorter.
	www.encyclopedia.com /doc/1E1-synodicp.html (1066 words)

	Synodic Period - LoveToKnow 1911
		SYNODIC PERIOD, in astronomy, the apparent period of a planet or satellite when its revolution is referred to the line passing through the earth or the sun.
		In the case of the planets it is the period between successive conjunctions of the same kind, inferior or superior, with the sun.
		In the case of the satellites it is the period relative to the radius vector from the sun.
	www.1911encyclopedia.org /Synodic_Period (77 words)

	Orbital period - Biocrawler
		The synodic period is the time that it takes for the object to reappear at the same spot in the sky, relative to the Sun, as observed from Earth.
		The draconitic period is the time that elapses between two passages of the object at its ascending node, the point of its orbit where it crosses the ecliptic from the southern to the northern hemisphere.
		The anomalistic period is the time that elapses between two passages of the object at its perihelion, the point of its closest approach to the Sun.
	www.biocrawler.com /encyclopedia/Synodic_period (705 words)

	Highbeam Encyclopedia - Search Results for synodic
		The Moon's synodic period is the time between successive recurrences of the same phase (e.g., the period between one full moon and the next).
		A Dictionary of Physics; 1/1/2000; ALAN ISAACS; 70 words; synodic period The mean time taken by any object in the solar system to move between successive returns to the same position, relative to the sun as seen from the earth.
		This period is curiously correlated with the average length of the human female menstrual cycle (29.5 days), while the average length of human pregnancy (266 days) equals nine synodic months (265.8...
	www.encyclopedia.com /SearchResults.aspx?Q=synodic (1123 words)

	* Synodic Period - (Astronomy): Definition
		Synodic Period - The length of time it takes a solar system body to return to the same configuration (opposition to opposition, for example) with respect to the Earth and the Sun...
		The sidereal month is the true measure of the Moon's orbital period, but the synodic period, such as from one full moon to the next,...
		synodic period The interval of time between and planetary configuration of a celestial body, with respect to the sun, and the next successive same configuration of that body, as from inferior conjunction to inferior conjunction.
	en.mimi.hu /astronomy/synodic_period.html (400 words)

	AllRefer.com - synodic period (Astronomy, General) - Encyclopedia
		synodic period[sinod´ik] Pronunciation Key, in astronomy, length of time during which a body in the solar system makes one orbit of the sun relative to the earth, i.e., returns to the same elongation.
		The synodic period of the moon, which is called the lunar month, or lunation, is 29 1/2 days long; it is longer than the sidereal month.
		For the inferior planets the synodic period is longer than the sidereal period, but for the superior planets it is shorter; for Pluto the synodic period is slightly more than one year, while its sidereal period is nearly 250 years.
	reference.allrefer.com /encyclopedia/S/synodicp.html (375 words)

	Meridian Magazine :: Science and Religion :: The Planets Testify of the Creator
		Thus, for the inner planets, as for the moon, the synodic period relative to the sun seems to be the more important, and will be used for their set times.
		The synodic period of Mars is nearly exactly three sacred rounds of 260 days (3 x 260 = 780), which fact argues strongly for the set time of Mars to be the synodic period.
		The synodic period of Mars is in a 4:3 ratio with Venus.
	www.meridianmagazine.com /sci_rel/040414planets.html (5463 words)

	The Sirius Research Group
		This paper examines what appears to be a pattern of resonance between Venus transit cycles, the mean synodic period and the time interval of the 360-degree tropical year based on Earth's non-precessing axis of rotation relative to the position of the Sun.
		If there are157 synodic periods in a tropical year, then 5 synodic periods are separated by 2.292994° (360° ÷ 157), which equal 2.326383 days in a tropical year (365.24219878 ÷ 360 × 2.292994).
		If there are152 synodic periods in a sidereal year, then 5 synodic periods are separated by 2.368421° (360° ÷ 152), which equal 2.403002 days in a sidereal year (365.256361 ÷ 360 × 2.368421).
	siriusresearchgroup.com /articles/VTP.shtml (1708 words)

	The Sirius Research Group
		Therefore, if the synodic period matches with the 360° orbit period of Venus (same node to same node) while Venus is crossing the Earth-Sun plane, a transit can be seen from Earth as long as the periods match within a certain degree.
		For instance, after a period of about 20,000 years or 360° revolutions of the Earth around the Sun (or 12510 synodic periods and 32510 Venus orbits) the difference is 15 days based on Earth's 360° tropical year and 156 days based on Earth's 360° sidereal year.
		If Earth's 360°-orbit period around the Sun were to consist of 365.256361 mean solar days (31,558,149.5 s) and the 360°-orbit period of Venus has 224.701 days, it would not be possible for a transit of Venus to be visible from Earth on or around the 8th of June 2004.
	www.siriusresearchgroup.com /articles/Nasa-Venus-Transit.shtml (2198 words)

	Synodic period
		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.
		Period 180 years is the smallest common multiple of selected orbital, synodical and axial periods of outer planet.
	www.cyclesresearchinstitute.org /ladma/synodp.htm (790 words)

	Planets Testify
		The sidereal period is relative to the stars, meaning the average interval between successive orbital passings of the planet near the same star.
		Astronomers tend to ignore the synodic period because it is earth-based.
		It just hasn't appeared to be of fundamental importance as does the sidereal period, which is the same as the period of the planet orbiting the sun, independent of the earth.
	www.johnpratt.com /items/docs/lds/meridian/2004/planets.html (5368 words)

	Rotation Period and Day Length
		As a result, the rotation period of a planet which has a retrograde rotation is a negative number, as shown in the table for the three planets which have such a rotation.
		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)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal
		The synodic period is the time that it takes for the object to reappear at the same point in the sky, relative to the Sun, as observed from Earth; i.e.
		In the case of a planet's moon, the synodic period usually means the Sun-synodic period.
		The Earth-synodic period can also be calculated, but it varies with the planet's position with respect to the Earth; in the Deimos example, at Mars opposition the Earth-synodic period would be about 1.2604 d, because Earth's motion overtakes Mars.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=synodic_period (885 words)

	"The Trouble with Months" -- skw9606
		It is the synodic month that is easiest to identify, both for us now and for ancient lunar observers when calendars were first being developed.
		The extreme variation in the synodic period is due to Moon's relatively large size compared with Earth.
		The number of synodic periods of Moon and the revolution period of Earth are also incommensurate.
	www.as.wvu.edu /~jel/skywatch/skw9606.html (480 words)

	Synodic period
		Mean period, with which (helio)centric conjunctions of two bodies repeat, is called synodic period.
		period 4627.15 y has on the interval (0-6000 y) smallest inaccuracy (0.03); at present it is assumed to be the most accurate period of multiple conjunctions (so called All-Planets Synod).
		Period 180 years is the smallest common multiple of selected orbital, synodical and axial periods of outer planet.
	www.sweb.cz /vladimir_ladma/english/cycles/reson/synodp.htm (811 words)

	Formulas - Synodic and Sidereal Periods
		Sidereal period, as indicated by the accuracy of sidereal time, is an actual measure of a complete orbit relative to the stars (since the stars are unmoving - or at least moving very slowly).
		A synodic period is a rotation of a planet so that it appears to be in the same place in the night sky.
		We have two formulas that will allow us to determine the sidereal rotation period of the other 8 planets in our Solar System by using the synodic period (simply by observation).
	astronomyonline.org /Science/SiderealSynodicPeriod.asp?Cate=Science&SubCate=MP01&SubCate2=MP040203 (161 words)

	Lunar Cycles -- from Eric Weisstein's World of Astronomy
		Saros cycle: The period after which the pattern of lunar and solar eclipses repeat, 18 years and 11 days.
		synodic period: The period for the Moon to complete a revolution relative to the Earth-Sun line.
		This is the period for lunar phases as seen for Earth, called the month, and taking 29.53 days for one phase cycle.
	www.treasure-troves.com /astro/LunarCycles.html (169 words)

	Multiples of 13 in Mayan Astronomy
		The period from one synodic position to the next can be as brief as 580 days and as long as 588 days.
		The accumulation of error in their almanac formula could be managed by periodically changing the sequence of day-names through a process of regression like they did with the day-names of the lunar phases.
		Mercury's period varies from 106 to 129 days over time and, while its sequence of variable periods is repetitious and predictable, it did provide more challenges to calendrical regulation than the more stable planets did.
	mayanastro.freeservers.com /mayan3.html (2274 words)

	[No title]
		Taking the period of a planet or body pu as unity, such that its period is one, incorporated rotations equal the inverse of the sum of all inverse periods of all bodies incorporated into the rotation.
		In such cases, the synodic period is greater than the periods of both planets which result from it.
		Indeed, for all internal synodics, the period of revolution of the synodic period, itself, will always be the period of the higher planet.
	members.lycos.co.uk /JeremyBatterson/kepler2002.html (2910 words)

	[No title] (Site not responding. Last check: )
		As such it differs from the synodic period that is observed on a lightcurve, which does depend on solar illumination geometry.
		Here the the synodic period is the time between two hits from a laser sitting on the surface of the asteroid.
		Figure 2: Ratio of synodic to sideral periods at the time of observation of 2000 PH5 on 2001 JUL 28, assuming different orientations for the spin vector.
	astrosun.tn.cornell.edu /~jlm/NEAs/2000PH5/synodic.html (293 words)

	synodic period. The Columbia Encyclopedia, Sixth Edition. 2001-05
		The synodic period of the moon, which is called the lunar month, or lunation, is 291/2 days long; it is longer than the sidereal month.
		B.C. It is used in determining the date of Easter in the Gregorian calendar and was used in placing the intercalary month in the ancient Greek calendar.
		For the inferior planets the synodic period is longer than the sidereal period, but for the superior planets it is shorter; for Pluto the synodic period is slightly more than one year, while its sidereal period is nearly 250 years.
	www.bartleby.com /65/sy/synodicp.html (306 words)

	Lunar Calendars
		Since the length of the synodic month is changing, a problem which lunar calendar makers must face is in deciding how the synodic month will change over, say, the next 1000 years.
		It is thus necessary to distinguish between two sense of the term "synodic month" (the average time, over some time period, between successive conjunctions of the Sun and the Moon when viewed from the Earth): the "observed synodic month" and the "TAI synodic month".
		Thus the observed synodic month, in contrast to the TAI synodic month, is decreasing, and may be expected to reach about 29.53058585 real days by the year 3000 CE, and perhaps 29.53058244 real days.
	www.hermetic.ch /cal_stud/lunarcal/luncal.htm (670 words)

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