
	Where results make sense

Topic: Orbiting body

Related Topics

body modification

body piercing

The Human Body

black body

body language

The mind body problem

electronic body music

Out of Body experiences

celestial bodies

Double bodies

car body styles

Invasion of the Body Snatchers

In the News (Sat 4 Jul 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Free Orbit (Site not responding. Last check: 2007-11-07)
		In accordance with the laws of gravitational movement, a focal point of the orbit (the center in the case of a circle) must always coincide with the center of mass (center of gravitaty) of the orbiting celestial body.
		As a result of the centrifugal force generated during the orbit, the effect of the sun's gravity on the Earth is offset and, therefore, we perceive nothing of its existence.
		Because of this, the counteracting centrifugal force and consequently the orbiting velocity must be correspondingly greater (because the centrifugal force increases with the square of the orbiting velocity).
	www.hq.nasa.gov /office/pao/History/SP-4026/noord3.html (453 words)

	Parameters Describing Elliptical Orbits
		The angle from the ascending node to the pericenter, measured in the plane of the orbit.
		and K is inversely proportional to the sum of the masses of the central body and the orbiting body.
		When the mass of an orbiting body is small enough to ignore, the same value of K can be used for all small objects orbiting around the same central body.
	www.lepp.cornell.edu /~seb/celestia/orbital-parameters.html (768 words)

	Orbit (celestial mechanics) - Wikipedia, the free encyclopedia
		In the special case that the orbiting body is always the same distance from the center, it is also the shape of a circle.
		To analyze the motion of a body moving under the influence of a force which is always directed towards a fixed point, it is convenient to use polar coordinates with the origin coinciding with the center of force.
		The gravity of the orbiting object raises tidal bulges in the primary, and since below the synchronous orbit the orbiting object is moving faster than the body's surface the bulges lag a short angle behind it.
	en.wikipedia.org /wiki/Orbit (2781 words)

	Encyclopedia of the Solar System: Paul R. Weissman
		Body containing a significant fraction of ices, smaller than a planet and orbiting the Sun, usually in a highly eccentric orbit.
		Angle between the plane of the or-bit of a planet, comet, or asteroid and the ecliptic plane, or between a satellite's orbit plane and the equatorial plane of its primary.
		Commonly taken to be the mean distance of the orbit of an object from its primary, though not precisely correct.
	www.apnet.com /refer/solar/Contents/chap1.htm (919 words)

	NOAA KLM USER'S GUIDE Section 2.1
		The square of the sidereal (relative to the stars) period of the orbiting body is directly proportional to the cube of the semi-major axis of the orbit.
		Since the orbits which are being considered here are close to the Earth, the most important cause of variation in the orbit is the non-sphericity of the Earth; the flattening of the poles and the bulging of the equator resulting from the adjustment of the Earth to its rotation.
		This means that the satellite moves in a westward direction, termed a "retrograde" orbit, since the satellite motion is opposite to the Earth rotation direction.
	www2.ncdc.noaa.gov /docs/klm/html/c2/sec2-1.htm (693 words)

	N-Body system: Algea's Alternative Views (Site not responding. Last check: 2007-11-07)
		The elliptical orbit of the sun is small but it must have the same period (T) as that of the planet and both must orbit in the same direction and be half a cycle out of phase with each other.
		The period and angular velocity of the second planet in its secondary orbit are the same as for the primary planet in its primary orbit except that they are half a cycle out of phase with each other.
		The size of its secondary orbit, however, shrinks with its increase in mass and also with the square of its mean separation ('D) from the second planet.
	members.aol.com /calgea/l11nbody.htm (1755 words)

	Applied Orbit Perturbation and Maintenance
		The square of an orbiting body's revolutionary period is proportional to the cube of the satellite's mean distance from the central body.
		Orbit perturbations to be discussed in the later chapters of this book will be in terms of the deviations from those six classic elements.
		A geosynchronous or geostationary drift orbit is a circular orbit with a mean altitude either higher or lower than the stationary altitude required for a newly launched satellite to move to its desired longitude, usually at a rate of 3 deg/day, equivalent to an altitude of 234 km above or below GEO altitude.
	www.aero.org /publications/chao/index.html (1357 words)

	Simple Harmonics, Fractals and Orbital Periods
		If two planets orbit in harmony, then there is the inevitable drift to catastrophic change in one or both orbits.
		One of the consequences of this resonance is impact into another orbiting body, either the one that changed the orbit, or another.
		To have a stable minor planetary orbit, the body must be well away form a major planet's gravitational influence at all times and have an orbital period that is not an exact discrete period to any large planet's orbital period.
	www.geocities.com /syzygywjp/SimpleHarmonics.html (1540 words)

	Orbits
		When he computed the orbits for three comets which had appeared in 1537, 1607 and one Halley observed himself in 1682, he found that the characteristics of the orbits were almost identical.
		Euler, from 1760 onwards, seems to be the first to study the general problem of three bodies under mutual gravitation (rather than looking at bodies in the solar system) although at first he only considered the restricted three body problem when one of the bodies has negligible mass.
		However all this work on the orbits of bodies in the solar system failed to keep pace with observations which always seemed one step ahead, giving further and yet further problems for the theorists to explain.
	www-groups.dcs.st-and.ac.uk /~history/HistTopics/Orbits.html (4387 words)

	Virtual Solar System @ nationalgeographic.com (Site not responding. Last check: 2007-11-07)
		The eccentricity (E) of an planetary orbit is given by the formula E=1 - P/M, where (P) is the distance of the planet from the sun at perihilion (closest approach) and (M) is the mean distance of the planet from the sun.
		All planets and moons in the model move according to Kepler’s Second Law, which states that an orbiting body moves slower the farther away it is from the body around which it is orbiting.
		When an orbiting body is clicked upon, the virtual clock adjusts to a rate that allows the most effective display of the motion of that body.
	www.nationalgeographic.com /solarsystem/technotes.html (738 words)

	[No title]
		The sizes of the orbits and the orbital speeds are all to scale, but the sizes of the Sun and planets are not.
		But they model all the orbits on the orbital plane of the Earth and ignore the fact that the planes of the orbits differ from the plane of the Earth from about 1 to 3.5 degrees (except for Mercury’s orbit which deviates by 7 degrees).
		The parameter i represents the angle between the plane of the orbit of the comet or asteroid and the plane of the Earth's orbit.
	www.nd.edu /~learning/orbital (1712 words)

	orbits
		Then when I pick a frame where the large body is at the origin, and the orbiting body is (lets say in a pervect circular orbit) sitting at a distance r on the x-axis (seemingly), so the large body is must be spinning with it's axis of spin perpendicular to the x-axis.
		This is my problem, this is the same system but viewed in a frame that is orbiting at the same speed as the orbiting body (or spinning at the same rate as the angular velocity of the orbiting body, and looking down on the origin).
		When you have a non-circular orbit, in this frame it looks like the orbiting body is occilating back and forth along the x-axis while the larger body has a non-constant spin rate which occilates in resonance with the orbiting body.
	www.physicsforums.com /showthread.php?p=827600 (2512 words)

	WSC' 03 Sample Paper
		This would cause the rotational speed of the body to slowly decrease, and the conductive inner layers to heat.
		Most of the bodies around the Sun lie roughly in one plane, and their orbits are very nearly circular.
		A body orbiting a parent with a magnetic field would be pushed around by the magnetic field if the axis of its orbit were not parallel to the axis of the parent’s magnetic field.
	webpages.charter.net /mark.p.grimes/Motion.htm (831 words)

	Orbiting body - Wikipedia, the free encyclopedia
		) is a body that orbits central body (
		it is less massive than the central body by several orders of magnitude (i.e.
		the central body around which it orbits comprises one of the orbits elliptical foci.
	en.wikipedia.org /wiki/Orbiting_body (69 words)

	Kepler's Three Laws
		More generally, the orbit of any two bodies about each other can be reduced the to that of one body orbiting about the other in an elliptical orbit with the other body at the focus of the ellipse.
		This law is a consequence of the conservation of angular momentum applied to the orbiting body.
		* The square of the sidereal orbital period of a body is proportional to the cube of the planets mean distance from the Sun.
	www.ac.wwu.edu /~vawter/PhysicsNet/Topics/Gravity/KeplersLaws.html (539 words)

	[No title]
		Dark matter was proposed to explain the fact that stars and bodies of gas far from their galactic centers, and galaxies within galaxy clusters, move in in a manner which, according to the known amount of matter present, should cause them to escape.
		In a stable orbit, the velocity of an orbiting body creates centrifugal force which is balanced by the force of gravity at the orbital radius.
		The CVP occurs at different radii from different attracting bodies according to the mass of each attracting body, but in every case, the constant orbital velocity is proportional to the fourth root of the mass of the attracting body.
	www.softcom.net /users/greebo/cvp.htm (6845 words)

	ERTH01 - Glossary
		A small body (typically less than 1000 Km in diameter) orbiting the sun that does not display the atmosphere or tail associated with a comet; formerly called minor planets.
		Comet: A small body in orbit around the Sun, with a core consisting of ice and rock, and a tail of gas and dust.
		Perihelion: For an object orbiting the Sun, the point in the orbit that is the closest from the Sun.
	topex.ucsd.edu /erth01/Glossary.html (4066 words)

	NRAO Glossary
		Angular momentum: A quantity obtained by multiplying the mass of an orbiting body by its velocity and the radius of its orbit.
		According to the conservation laws of physics, the angular momentum of any orbiting body must remain constant at all points in the orbit.
		Thus planets in elliptical orbits travel faster when they are closest to the Sun, and more slowly when farthest from the Sun.
	wwwmain.cv.nrao.edu /imagegallery/glossary.shtml (4257 words)

	Ast 110: Class 12 (Site not responding. Last check: 2007-11-07)
		I showed an example of using Kepler's 3d law to compare the orbit of a satellite close to the Earth's surface with the orbit of the Moon round the Earth.
		Then a satellite that is orbiting "close to the Earth's surface" ca be thought of as orbiting 1 Earth radius (6400 km) away from this point-like "Earth".
		The Law of Inertia --- is a brilliant feat of imagination, and is the realisation that a body's state of rest or of uniform motion will remain unchanged unless the body is influenced by some event (we would say, unless a "force" acts oon the body).
	www.ifa.hawaii.edu /faculty/acowie/class99/class_12.html (456 words)

	Aerospaceweb.org \| Ask Us - Space Shuttle Speed in Orbit
		The word "orbit" is defined as the path a body follows when being acted upon by the force of gravity.
		The reason the speed is constant is because the orbiting object is always accelerating toward the center of the primary body while moving in a straight line.
		In our example, the primary body is the Earth and the orbiting body is the Space Shuttle, so we can use this equation to solve for the Shuttle's orbital speed.
	www.aerospaceweb.org /question/spacecraft/q0164.shtml (1074 words)

	NEA Mining - July 2nd 2001
		R^3 = period^2 (GM/(4pi^2)), where R is the radius of orbit, G is the gravitational constant, and M is the mass of the body* being orbited.
		For these equations, when the mass of the orbiting body is much less than the mass of the body being orbited, the small mass can be neglected.
		L = mvr, where L is a constant, and v and r are scalar measurements of the orbiting body taken from the center of mass of the system.
	www-scf.usc.edu /~everist/asteroid/report1.html (498 words)

	Clearing the neighbourhood -- Wikipedia (Site not responding. Last check: 2007-11-07)
		The authors used several similar phrases as they developed a theoretical basis to determine if an object orbiting a star is likely to be "dynamically important enough to have cleared its neighboring planetesimals," able to "clear its neighboring region," to "clear its local environment," and "capable of clearing its zone".
		Over many orbital cycles, a large body will tend to cause small bodies either to accrete with it, or to be disturbed to another orbit.
		Two bodies are defined to share an orbital zone if their orbits cross a common radial distance from the primary, and their non-resonant periods differ by less than an order of magnitude.
	spot.colorado.edu /~fast/planets (945 words)

	Astronomers find two planetary systems: Science News Online, Jan. 13, 2001 (Site not responding. Last check: 2007-11-07)
		The group measured the wobbles that the orbiting bodies produce in their respective suns.
		The body, he notes, has a planetlike orbit that lies at a slightly greater distance from HD 168443 than Mars' orbit does from the sun.
		The elongated path of the inner planet orbiting Gliese 876 provides the first indication that the unseen planet is, as theory predicts, gaseous and not solid, Lin says.
	www.sciencenews.org /20010113/fob5.asp (738 words)

	Extrasolar Planets
		The planets detected orbiting these stars, however, show a low eccentricity, which the researchers feel is due to a small orbital period, unlike the orbital period of the planet orbiting 16 Cygni B. In addition, Cochran and his colleagues further suggest that the planet's mass is about five times the mass of Jupiter.
		Their research on the eclipse suggests that because the inclination of the orbit was found to be 89 degrees (an inclination far from 90 degrees is needed), their results on the mass of the companion is inconclusive.
		The planetary body has also been calculated to have a radius of 1.2 that of Jupiter, and a derived temperature of approximately 700 K. They also go on to suggest that because of the velocity perturbations measured, a second companion may be in the offing.
	www.public.asu.edu /~sciref/exoplnt.htm (15809 words)

	ISS:Trip to Mars:What is an Orbit? - Questions (Site not responding. Last check: 2007-11-07)
		The word "perihelion" is the point where the orbiting body is closest to the sun.
		The word "aphelion" is the point where the orbiting body is farthest from the sun.
		In a circular orbit all points of the orbit are equally far from the center of the sun.
	iss.cet.edu /mars/f132.xml (156 words)

	Sedna, a Planet-Like Body Discovered at Fringes of Our Solar System
		This is likely the first detection of the long-hypothesized "Oort cloud," a faraway repository of small icy bodies that supplies the comets that streak by Earth.
		The artist's rendition shows "Sedna" in relation to other bodies in the solar system, including Earth and its Moon; Pluto; and Quaoar, a planetoid beyond Pluto that was until now the largest known object beyond Pluto.
		The extremely elliptical orbit of Sedna is unlike anything previously seen by astronomers; however, it resembles that of objects predicted to lie in the hypothetical Oort cloud.
	www.solarviews.com /eng/sedna.htm (818 words)

	Final Gallery
		The mass of the orbiting body cancels out on both sides of the equation and does not affect the velocity.
		Newton defined the period of an orbiting body as the time it takes to make one revolution around its center.
		A satellite is in geosynchronous orbit with the Earth when it stays over the same spot on the Earth at all times.
	aerospacescholars.jsc.nasa.gov /has/Students/finalGall.cfm?id=810 (910 words)

	JDOCentral.com - The Developer's Community for Java Data Objects: Commentary by Robin Roos (Site not responding. Last check: 2007-11-07)
		Everyone is familiar with the names of the planets that orbit the Sun and some of the moons and other satellites orbiting them.
		acquires a reference to the body it is orbiting.
		Thus what is added to the Sun’s orbit is a graph comprising the Earth, the moon, a space telescope, shuttle and space man. All of these become persistent instances upon commit.
	www.jdocentral.com /JDO_Commentary_RobinRoos_2.html (2464 words)

Try your search on: Qwika (all wikis)