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Topic: Invariable plane

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	eccentricity is ruled out
		In addition, the 100 kyr cycle is not evident until one transforms to the invariable plane, or to a plane close to it.
		The coincidence of the peaks of the clouds with the passage through the invariable plane had not previously been noticed, and it supports the contention that there is a peak in accretion at these times.
		Although there is circumstantial evidence supporting this picture (e.g., the maximum in noctilucent clouds when the earth passes through the invariable plane, and the low present iridium levels), the weakest part of the proposed mechanism is the absence of a clearly identifiable band of meteoroids or dust responsible for it.
	muller.lbl.gov /papers/nature.html (5498 words)

	Invariable plane - Wikipedia, the free encyclopedia
		The invariable plane of the solar system is the plane passing through its barycenter (center of mass) which is perpendicular to its angular momentum vector, about 98% of which is contributed by the orbital angular momenta of the four jovian planets (Jupiter, Saturn, Uranus, and Neptune).
		The invariable plane is within 0.5° of the orbital plane of Jupiter, and may be regarded as the weighted average of all planetary orbital planes.
		All planetary orbital planes wobble around the invariable plane, meaning that they rotate around its axis while their inclinations to it vary, both of which are caused by the gravitational influence of the other planets.
	en.wikipedia.org /wiki/Invariable_plane (549 words)

	INVARIABLE - LoveToKnow Article on INVARIABLE (Site not responding. Last check: )
		INVARIABLE PLANE, in celestial mechanics (see ASTRONOMY), that plane on which the sum of the moments of momentum of all the bodies which make up a system i~ a maximum.
		When all the bodies of the system are taken into account, the invariable plane is a certain mean among the planes of all the orbits.
		The latest computation of the position of this plane is by T. See, whose result for the position of the invariable plane is inclination to ecliptic 10 35~ 774, longitude of node on ecliptic 1o6 8 46.7 (Eq.
	www.1911encyclopedia.org /I/IN/INVARIABLE.htm (1429 words)

	Invariable Plane · Astrological definition of Invariable Plane · Astrology Encyclopedia
		As a result of this residue, the nodical line at which the orbit plane of each planet intersects the invariable plane, is displaced backward, in a precessional motion of the whole orbit plane.
		In addition, the inclination of the orbit plane to the invariable plane is slightly decreased or increased.
		The period of the orbital precession of the Ecliptic on the Invariable Plane is indeterminate, since the minimum inclination of the Ecliptic to that plane is 0°0'0".
	www.astrologyweekly.com /dictionary/invariable-plane.php (2365 words)

	INVARIABLE PLANE - Online Information article about INVARIABLE PLANE
		Laplace that to whatever mutual actions all the bodies of a system may be subjected, the position of this plane remains invariable.
		account, the invariable plane is a certain mean among the planes of all the orbits.
		Jupiter is so preponderant that the position of the invariable plane does not deviate much from that of the orbit of Jupiter.
	encyclopedia.jrank.org /I27_INV/INVARIABLE_PLANE.html (489 words)

	[No title]
		Celestial equator: the plane perpendicular to the celestial ephemeris pole.
		Invariable plane: the plane through the centre of mass of the solar system perpendicular to the angular momentum vector of the solar system.
		For the Earth the obliquity of the ecliptic is the angle between the planes of the equator and the ecliptic.
	www.astronomy.gi /glossary.html (6449 words)

	Kybalion11
		The Hermetic Masters long since discovered that while the Principle of Rhythm was invariable, and ever in evidence in mental phenomena, still there were two planes of its manifestation so far as mental phenomena are concerned.
		They discovered that there were two general planes of Consciousness, the Lower and the Higher, the understanding of which fact enabled them to rise to the higher plane and thus escape the swing of the Rhythmic pendulum which manifested on the lower plane.
		By rising on to the higher plane of the Ego, much of the experience that comes to those dwelling on the lower plane is avoided and escaped.
	www.divineparadox.com /AgelessWisdom/Kybalion/kybalion11.htm (1790 words)

	ASP: This Restless Globe
		The invariable plane is formally defined as "the plane through the center of mass of the solar system perpendicular to the angular momentum vector of the solar system." It represents the total angular momentum of all Solar System objects, insofar as their elements are known.
		The north pole of the invariable plane lies in Draco, its south pole in Mensa.
		The rotation of the Earth on its axis causes it to bulge at the equator and flatten at the poles.
	www.astrosociety.org /education/publications/tnl/45/globe2.html (804 words)

	MILANKOVITCH CYCLES FACTS AND INFORMATION (Site not responding. Last check: )
		The invariable_plane, the plane that represents the angular_momentum of the solar system, is approximately the orbital plane of Jupiter.
		It has been proposed that a disk of dust and other debris is in the invariable plane, and this affects the Earth's climate through several possible means.
		The Earth presently moves through this plane around January 9 and July 9, when there is an increase in radar-detected meteors and meteor-related mesospheric clouds.
	www.witwib.com /Milankovitch_cycles (1490 words)

	Matrix Astrology Software : Learn Astrology - Astrophysical Directions- Solar System- Invariable Plane of Solar System (Site not responding. Last check: )
		The Invariable Plane of our solar system passes through the center of gravity of the system and is independent of the mutual perturbations of the planets.
		It is a plane through the center of mass, perpendicular to the orbital angular-momentum factor.
		The northern node of the invariable plane to the ecliptic is 107°03'46.99" in longitude (1950.0) with an inclination of 1°34'50" to the ecliptic plane.
	www.thenewage.com /resources/aphysical/ssplane.asp?orig= (244 words)

	Longitude - Wikipedia, the free encyclopedia
		The north pole is that pole of rotation that lies on the north side of the invariable plane of the solar system (the ecliptic).
		The location of the prime meridian as well as the position of body's north pole on the celestial sphere may vary with time due to precession of the axis of rotation of the planet (or satellite).
		If the position angle of the body's prime meridian increases with time, the body has a direct (or prograde) rotation; otherwise the rotation is said to be retrograde.
	www.wikipedia.org /wiki/Longitude (1432 words)

	Matrix Astrology Software : Learn Astrology - Visual Astrology - The Zodiac or Ecliptic Coordinate System (Site not responding. Last check: )
		We have mentioned, when speaking of the zodiac, that it is the plane of the Earth's orbit that is used as the fundamental reference plane for the ecliptic system of coordinates.
		We may specify the position of all objects as either above (north) or below (south) of this plane by a number of degrees of arc that range from 0° (the plane itself) to 90° above or below this plane -- the north and south poles of the ecliptic.
		This is in addition to the various orbital planes of the planets other than Earth, each of which has its own "ecliptic," based on the inclination of its particular orbital plane.
	www.thenewage.com /resources/vastrology/zcsys.asp?orig= (577 words)

	[39.03] The plane of the Kuiper belt (Site not responding. Last check: )
		The derived plane has an inclination with respect to the ecliptic of 1.8 degrees and an ascending node of 81 degrees, with a 1 sigma error in pole position of the plane of 0.51 degrees.
		The plane of the Kuiper belt is inconsistent with the invariable plane at the 2.3 sigma level.
		Using linear secular perturbation theory, we show that the plane of the Kuiper belt is expected to oscillate about the position of the invariable plane with a period of 6.4 x 10
	www.aas.org /publications/baas/v35n4/dps2003/235.htm (140 words)

	Precession (Henry Spencer)
		You want that direction to be in the orbit plane at departure time, so that there's some point on the orbit where the orbital velocity points in that direction, so that the orbital velocity counts as part of the velocity needed for the interplanetary trajectory.
		There is a slow precession of the ecliptic, in fact, but that is caused by perturbations due to the other planets, and there are counterbalancing precessions of their orbital planes.
		The "invariable plane" of the solar system, determined by the angular-momentum vector of the whole system, is (last I heard) thought to be fixed in space to the limits of measurement.
	yarchive.net /space/orbits/precession.html (882 words)

	MERCURY (MERCURIUS) - LoveToKnow Article on MERCURY (MERCURIUS) (Site not responding. Last check: )
		Schiaparelli also announced that the axis of rotation of the planet is nearly perpendicular to the plane of its orbit.
		The rotation being uniform, while the orbital motion, owing to the great eccentricity of the orbit, is affected by a very large inequality, it would follow that there is a libration in longitude of nearly 24 on each side of the mean position.
		But such a group of bodies, if situated in the plane of the ecliptic, would produce a motion of the node of Mercury equal to that of its perihelion, while the observed motion 1 Mercury grazes sun's limb.
	65.1911encyclopedia.org /M/ME/MERCURY_MERCURIUS_.htm (6750 words)

	Nat' Academies Press, (NAS Colloquium) Carbon Dioxide and Climate Change (1997)
		The invariable plane of the solar system is that plane perpendicular to the angular momentum vector of the solar system, and is approximately equal to the orbital plane of Jupiter.
		The dominant peak in the spectrum of the inclination is at 0.01 cycles per kyr (100-kyr period) in a remarkably close match to the 100-kyr peak observed in the climate spectra.
		As the earth passes through the invariable plane, accretion increases, and we speculate that glaciers grow, while recession of glaciers takes place during high inclinations when the earth’s orbit tips out of the invariable plane.
	www.nap.edu /books/0309058767/html/57.html (5795 words)

	College of Gates & Planes (Site not responding. Last check: )
		The exact nature of the material depends on the plane from whence it was drawn.
		The specific plane must be selected when this power is acquired, usually after an extensive period of research by the Wizard.
		Casting this spell within a plane, or upon an extraplanar creature or object, will give the Wizard something akin to a "smell" for the place, so that he will know the plane again should he ever visit.
	mywebpages.comcast.net /strytelr6/bestiary/gates.html (2938 words)

	PIERRE SIMON, MARQUIS DE LAPLACE - LoveToKnow Article on PIERRE SIMON, MARQUIS DE LAPLACE (Site not responding. Last check: )
		presentes par divers savans, torn, vii., 1776), Laplace announced his celebrated conclusion of the invariability of planetary mean motions, carrying the proof as far as the cubes of the eccentricities and inclinations.
		This was the first and most important step in the establishment of the stability of the solar system.
		Laplace treated the subject from the point of view of Lhe gradual aggregation and cooling of a mass of matter, and demon~trated that the form which such a mass would ultimately assume aiust be an ellipsoid of revolution whose equator was determined by Lhe primitive plane of maximum areas.
	64.1911encyclopedia.org /L/LA/LAPLACE_PIERRE_SIMON_MARQUIS_DE.htm (4779 words)

	North Pole - Wikipedia, the free encyclopedia (Site not responding. Last check: )
		More accurately, «The north pole is that pole of rotation that lies on the north side of the invariable plane of the solar system» [1] (http://www.hnsky.org/iau-iag.htm).
		There will also be a single unmoving point which is furthest along Io's orbit (best defined as the point most removed from the plane formed by the north-south and near-far axes, on the leading side) —this is the leading pole.
		On May 3, 1952 U.S. Air Force Lieutenant Colonel Joseph O. Fletcher and Lieutenant William P. Benedict landed a plane at the geographic North Pole.
	www.eastcleveland.us /project/wikipedia/index.php/North_pole (2086 words)

	MySciencePapers (Site not responding. Last check: )
		Although the inclinations are similar for the orbital plane of Mars and for the invariable plane (1.8 and 1.6°, respectively), the ascending nodes are sufficiently different (49 and 107°, respectively) to remove any possible confusion in the interpretation of these observations.
		Early results from the February, March, and April observations show that the plane of Symmetry of the zodiacal cloud is located north of the ecliptic plane.
		It disagrees with results by other observers who advocate that the symmetry plane is close to either the invariable plane of the solar system or the ecliptic at these elongation angles.
	home.earthlink.net /~davebeeson/MySciencePapers.html (2395 words)

	Past news
		RC-135 strategic reconnaissance plane spied on areas deep in the DPRK and its major military targets on the east coast while U-2 high-altitude strategic reconnaissance plane and RC-135 strategic reconnaissance plane photographed strategic targets of the DPRK and spied on them by using electronic devices.
		E-3 plane commanded pursuit assault planes and fighter bombers and spied on military targets of the DPRK in the fore-frontal areas.
		They transferred more than 50 strategic reconnaissance planes, refueling tankers, electronic jamming planes, special operational planes, pursuit assault planes and fighter bombers from the U.S. mainland and overseas bases to South Korea to be involved in these exercises for a war of aggression.
	www.kcna.co.jp /item/2003/200304/news04/02.htm (3137 words)

	Matrix Astrology Software : Learn Astrology - Astro Index (Site not responding. Last check: )
		The Solar System possesses two fixed planes: that of the Solar Equator; and the Invariable plane -- a central plane of the Solar System discovered by Laplace, which, passing through its center of gravity at a mean inclination of about 1°35' to the Ecliptic, is independent of the mutual perturbations of the planets.
		However, the values of these inclinations and the longitudes of the planetary Nodes along this plane are all variable due to motions of the orbits themselves with respect to the other great reference plane of the Solar System: the Invariable Plane -- so-called because its position remains unaltered by any forces within the system.
		Finally they showed that the orbit planes precess backward along the invariable plane, while most of the major axes revolve forward-spending briefer periods in actual retrograde motion.
	www.thenewage.com /cg/x.dll?p=na2&sql=E3&name=Invariable\|Plane (1921 words)

	Ed Mercurio's GCR Article
		The sum of the earth’s obliquity, inclination of the orbital plane with relation to the invariable plane of the solar system and inclination of the orbital plane with relation to the plane of the solar equator is used to calculate a hypothetical curve of geomagnetism that would result over the last three million years.
		This is the angle of the inclination of the earth’s orbital plane with relation to the solar equatorial plane.
		Curve calculated from the sum of the inclination of the earth’s orbital plane with relation to the invariable plane of the solar system + the inclination of the earth’s orbital plane with relation to the equatorial plane of the sun + the earth’s orbital obliquity.
	www.hartnell.cc.ca.us /faculty/mercurio/gcr2.html (7478 words)

	Observations
		Hall also reaches the interesting conclusion that the plane in question seems to lie near the invariable plane of the solar system, a result which might be expected if the light proceeded from a swarm of independent meteoric particles moving around the Sun.
		from the ascending node of the invariable plane so that there is a well-marked deviation of his results from those of Hail.
		difference between the ecliptic and symmetry planes and that the plane of symmetry may not be uniform.
	zodiacal-light.hit.bg /zl_files/observations_text.html (898 words)

	Lynne Allen : Current Research (Site not responding. Last check: )
		By projecting the classical KBO population observed at 40 AU onto a plane to estimate the expected population of the thin disk, I can rule out a cold disk located in the invariable plane.
		Over 90% of possible cold disk orientations with inclinations less than 1.0 degree, relative to the invariable plane, are also ruled out at the 95% confidence level.
		The dark solid line is the ecliptic plane, the lighter lines are the distant disks with inclination of 1 degree which are not ruled out by these fields.
	www.astro.ubc.ca /~lallen/kbo/thesis.html (1294 words)

	Spectrum of 100-kyr glacial cycle: Orbital inclination, not eccentricity -- Muller and MacDonald 94 (16): 8329 -- ...
		We recently proposed that a different orbital parameter, the inclination of the earth's orbit to the invariable plane of the
		plane perpendicular to the angular momentum vector of the solar
		the variation of inclination to the invariable plane.
	www.pnas.org /cgi/content/full/94/16/8329 (3573 words)

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