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Topics referred to by the same term
mechanics, orbital precession may refer to: Apsidal precession, where the major axis of an elliptical orbit cycles its orientation within its orbital plane
Orbital_precession
Rotation of a celestial body's orbital line of apsides
main orbital elements of an orbit. Apsidal precession is considered positive when the orbit's axis rotates in the same direction as the orbital motion
Apsidal_precession
Rotation of a satellite as it orbits
Nodal precession is the precession of the orbital plane (more specifically, the line of nodes) of a satellite around the rotational axis of an astronomical
Nodal_precession
Periodic change in the direction of a rotation axis
or orbital parameters. An important example is the steady change in the orientation of the axis of rotation of the Earth, known as the precession of the
Precession
Change of rotational axis in an astronomical body
In the absence of precession, the astronomical body's orbit would show axial parallelism. In particular, Earth's axial precession is the gradual shift
Axial_precession
Changes in the moon's rotation and orbit
normal rules of precession followed by spinning objects. In addition, the orbit of the Moon undergoes two further types of precessional motion: apsidal
Lunar_precession
Type of geocentric orbit
surface. Even if an orbit remains Sun-synchronous, however, other orbital parameters such as argument of periapsis and the orbital eccentricity evolve
Sun-synchronous_orbit
general relativity, this remaining precession, or change of orientation of the orbital ellipse within its orbital plane, is explained by gravitation being
Tests_of_general_relativity
The Moon's circuit around Earth
the orbit is not fixed in space but rotates over time. This orbital precession is called apsidal precession and is the rotation of the Moon's orbit within
Orbit_of_the_Moon
Theorem in classical mechanics
applied his theorem to understanding the overall rotation of orbits (apsidal precession, Figure 3) that is observed for the Moon and planets. The term
Newton's theorem of revolving orbits
Newton's_theorem_of_revolving_orbits
Global climate cycles
changes (axial precession), while the Earth's elliptical orbit around the Sun rotates (apsidal precession). The combined effect of precession with eccentricity
Milankovitch_cycles
Amount by which an orbit deviates from a perfect circle
astrodynamics, the orbital eccentricity of an astronomical object is a dimensionless parameter that determines the amount by which its orbit around another
Orbital_eccentricity
Curved path of an object around a point
bodies (as with the precession of Mercury's orbit about the Sun), or when extreme precision is needed (as with calculations of the orbital elements and time
Orbit
Verrier discovered that the orbital precession of the planet Mercury was not quite what it should be; the ellipse of its orbit was rotating (precessing)
Two-body problem in general relativity
Two-body_problem_in_general_relativity
Angle between a reference plane and the plane of an orbit
distance maintain an almost constant orbital inclination with respect to the planet's equator (with an orbital precession mostly due to the tidal influence
Orbital_inclination
Time an astronomical object takes to complete one orbit around another object
reciprocal is the orbital frequency, a kind of revolution frequency, in units of hertz. According to Kepler's Third Law, the orbital period T of two point
Orbital_period
Topics referred to by the same term
the rotation of the orbit of a celestial body Nodal precession, the precession of the orbital plane of a satellite around the rotational axis of an
Precession_(disambiguation)
Precession of a gyroscope due to a nearby celestial body's rotation affecting spacetime
As Juno is a polar-orbit mission, it will be possible to measure the orbital frame-dragging, known also as Lense–Thirring precession, caused by the angular
Lense–Thirring_precession
Regular and periodic mutual gravitational influence of orbiting bodies
mechanics, orbital resonance occurs when orbiting bodies exert regular, periodic gravitational influence on each other, usually because their orbital periods
Orbital_resonance
Precession of satellite orbits due to a celestial body's presence affecting spacetime
The geodetic effect (also known as geodetic precession, de Sitter precession or de Sitter effect) is a consequence of the curvature of spacetime, predicted
Geodetic_effect
Relativistic correction
In physics, the Thomas precession, named after Llewellyn Thomas, is a relativistic correction that applies to the spin of an elementary particle or the
Thomas_precession
Angle between the rotational axis and orbital axis of a body
and its orbital axis, which is the line perpendicular to its orbital plane; equivalently, it is the angle between its equatorial plane and orbital plane
Axial_tilt
Movement of an object's magnetic moment axis about a magnetic field
In physics, Larmor precession (named after Joseph Larmor) is the precession of the magnetic moment of an object about an external magnetic field. The phenomenon
Larmor_precession
First planet from the Sun
angular orbital velocity equals its angular rotational velocity so that the Sun's apparent motion ceases; closer to perihelion, Mercury's angular orbital velocity
Mercury_(planet)
Largest dwarf planet in the Solar System
orbit (such as its orbital precession) over millions of years so that a collision could happen. However, Pluto is also protected by its 2:3 orbital resonance
Pluto
Trajectory of Earth around the Sun
center of the orbit is relatively close to the center of the Sun (relative to the size of the orbit). As seen from Earth, the planet's orbital prograde motion
Earth's_orbit
Outward bulge around a planet's equator due to its rotation
being spherically symmetrical also affects the orbits of satellites through secular orbital precessions. They depend on the orientation of the Earth's
Equatorial_bulge
Event causing release of space debris
orbital decay, with decay rates strongly dependent on area-to-mass ratio and altitude, while J2-driven secular effects induce differential precession
In-orbit_fragmentation
Dating of sedimentary units by calibration with astronomically tuned timescales
allows the resolution of timescales to a high degree of accuracy. If orbital precession cycles are identified, the dating error can be as low as 21,000 years
Astrochronology
Effect of general relativity
Institute 16 April 2020. By comparing the rate of orbital precession of two stars on different orbits, it is possible in principle to test the no-hair
Frame-dragging
Paths of particles in the Schwarzschild solution to Einstein's field equations
sphere. The orbital precession rate may be derived using this radial effective potential V. A small radial deviation from a circular orbit of radius router
Schwarzschild_geodesics
Inner moon of Uranus
local Laplace plane is the plane containing the satellite's nodal orbital precession. For regular moons of Uranus, their Laplace planes are usually closely
Uranus_XXVIII
Time taken by the Earth to orbit the Sun once with respect to the fixed stars
sidus 'asterism, star'), also called a sidereal orbital period, is the time that Earth or another planetary body takes to orbit the Sun once with respect to the fixed
Sidereal_year
Satellite orbit with high inclination
orbit inclined at a slight angle is subject to a torque, which causes precession. An angle of about 8° from the pole produces the desired precession in
Polar_orbit
Celestial coordinate system
An orbital pole is either point at the ends of the orbital normal, an imaginary line segment that runs through a focus of an orbit (of a revolving body
Orbital_pole
Area of the sky divided into twelve signs
2nd century BC, as well as into developing the Hindu zodiac. Due to the precession of the equinoxes, the time of year that the Sun is in a given constellation
Zodiac
Circumbinary exoplanet orbiting TOI-1338
Earth's perspective, showing how the orbit angle of TOI-1338 b slowly changes over time due to nodal orbital precession. The physical appearance of TOI-1338
TOI-1338_b
Moon of Saturn
satellite. Regular satellites, which are closer to the planet, have their orbital precession primarily controlled by the equatorial bulge of their primary planet
Iapetus_(moon)
Mathematical constants describing an orbit
The proper orbital elements or proper elements of an orbit are constants of motion of an object in space that remain practically unchanged over an astronomically
Proper_orbital_elements
Moon of Jupiter
of the orbits of irregular moons like Kallichore. On average, Kallichore has an orbital period of about 714 days (1.95 years) with an orbital eccentricity
Kallichore_(moon)
Circular orbit above Earth's Equator and following the direction of Earth's rotation
the Earth at its poles causes a precession motion of the orbital plane of any geostationary object, with an orbital period of about 53 years and an initial
Geostationary_orbit
Intersection of Moon's orbit with Earth's ecliptic
node is either of the two orbital nodes of the Moon; that is, the two points at which the orbit of the Moon intersects the orbit of Earth (the ecliptic)
Lunar_node
Cyclic climate pattern
insolation because of slow shifts in Earth's orbital parameters. The parameters include the precession of the equinoxes, obliquity, and eccentricity
North_African_climate_cycles
Stage of the Pleistocene Epoch
a marsh. Eastern Africa's hydroclimate was governed primarily by orbital precession, although modulated significantly by the 100 kyr eccentricity cycle
Middle_Pleistocene
Irregular moon of Uranus
96 million mi; 0.0533 AU), with an average orbital period of 1.86 years (681 d). S/2023 U 1 has an average orbital eccentricity of 0.25 and an average inclination
S/2023_U_1
Innermost Galilean moon of Jupiter
closer encounters with Jupiter's Galilean satellites due to Juno's orbital precession. After a series of increasingly closer encounters with Io in 2022
Io_(moon)
Smallest stable circular orbit of a particle
practical terms in artificial satellite orbits; in geostationary orbit at 35,786 kilometres (22,236 mi) the orbital speed is 10,800 kilometres per hour (6
Innermost stable circular orbit
Innermost_stable_circular_orbit
Timekeeping system on Earth relative to the celestial sphere
the plane of Earth's orbit, taking about 25,800 years to perform a complete rotation. This phenomenon is termed the precession of the equinoxes. Because
Sidereal_time
Unit of time based on Earth's orbit
axial precession is not constant. The anomalistic year is the time taken for the Earth to complete one revolution with respect to its apsides. The orbit of
Year
Field of classical mechanics concerned with the motion of spacecraft
planets, moons, and comets. Orbital mechanics focuses on spacecraft trajectories, including orbital maneuvers, orbital plane changes, and interplanetary
Orbital_mechanics
Fifth planet from the Sun
completes an orbit every 11.86 years. This is approximately two-fifths the orbital period of Saturn, forming a near orbital resonance. The orbital plane of
Jupiter
Process by which fertile areas of land become increasingly arid
now located is due to natural variations in solar insolation due to orbital precession of the Earth. Such variations influence the strength of the West African
Desertification
mutual orbit of the Huya system is relatively tight. The moon's orbit is nearly circular, with a low orbital eccentricity of 0.036. The moon's orbital inclination
Moon_of_38628_Huya
Irregular moon of Neptune
5 million mi; 0.156 AU), with an average orbital period of 8.6 Earth years. S/2002 N 5 has an average orbital eccentricity of 0.43 and an average inclination
S/2002_N_5
Risk-listed near-Earth asteroid
orbital resonances, such as the 3:1 mean-motion resonance with Jupiter's orbital period at 2.5 AU and the ν6 secular resonance with Saturn's orbital precession
2024_YR4
Apparent path of the Sun on the celestial sphere
ecliptic because their orbital planes are very close to Earth's. The Moon also appears near the plane, with the Moon's orbital plane inclined only 5.1°
Ecliptic
American astrophysicist (born 1939)
distance maintain an almost constant orbital inclination with respect to the planet's equator (with an orbital precession mostly due to the tidal influence
Peter_Goldreich
Cartesian vectors of position and velocity of an orbiting body in space
In astrodynamics and celestial dynamics, the orbital state vectors (sometimes state vectors) of an orbit are Cartesian vectors of position ( r {\displaystyle
Orbital_state_vectors
Dwarf planet in the asteroid belt
identified. Ceres is close to a 1:1 mean-motion orbital resonance with Pallas (their proper orbital periods differ by 0.2%), but not close enough to
Ceres_(dwarf_planet)
Either of two extreme points in a celestial object's orbit
dates of perihelion and aphelion change over a century due to precession and other orbital factors, which follow cyclical patterns known as Milankovitch
Apsis
Main-belt asteroid
about proper orbital elements, go to the "Proper Elements" tab and then click "[Help]" at the upper right corner. The synthetic proper orbital elements shown
44_Nysa
Main-belt asteroid
majority of Erigone family members, Donaldjohanson's orbit is not influenced by any meaningfully strong orbital resonances with another planet. However, its high
52246_Donaldjohanson
Sixth planet from the Sun
less than a third of its mass. Saturn orbits the Sun at a distance of 9.59 AU (1,434 million km), with an orbital period of 29.45 years. Saturn's interior
Saturn
Apparent oscillation of a minor body seen from the major body it orbits
ecliptic matches the ascending node of the orbit plane. In addition to uniform rotation and uniform precession of the equator plane, the Moon has small
Libration
Glaciation 460 million to 430 million years ago
from the sun, and orbital eccentricity such that the orbit of the earth is more elongated which would enhance the effect of precession. Coupled models have
Hirnantian_glaciation
Orbit in which natural drifting has been minimized
the orbital period. Such an orbit is then perfectly periodic (except for the orbital plane precession) and it is therefore called a "frozen orbit". These
Frozen_orbit
Relativistic interaction in quantum physics
atom. Thomas precession rate Ω T {\displaystyle {\boldsymbol {\Omega }}_{\text{T}}} is related to the angular frequency of the orbital motion ω {\displaystyle
Spin–orbit_interaction
Description of the moon's motion
loops on the unit sphere that rotates at the speed of the orbital precession (so that the orbit normal and the normal to the Laplace plane are fixed points
Cassini's_laws
Relative directions of orbit or rotation
central object (right figure). It may also describe other motions such as precession or nutation of an object's rotational axis. Prograde or direct motion
Retrograde and prograde motion
Retrograde_and_prograde_motion
Device to demonstrate Earth's rotation
due to Earth's rotation. The precession rate of the pendulum's oscillation plane depends on latitude. The angular precession rate Ω p {\displaystyle \Omega
Foucault_pendulum
Discrepancy between past temperatures and the amount of incoming solar radiation
years, related to Earth's orbital eccentricity, its contribution to variation in insolation is much smaller than those of precession and obliquity. The 100
100,000-year_problem
Northern pole-star; brightest star in Ursa Minor
longer orbital period and a large eccentricity of around 0.6. Moore published preliminary orbital elements of the system in 1929, giving an orbital period
Polaris
Time between successive new moons
Michelle; Francou, George (2002). "A new determination of lunar orbital parameters, precession constant and tidal acceleration from LLR measurements". Astronomy
Lunar_month
Situation in which an astronomical object's orbital period matches its rotational period
include non-synchronous orbital resonances in which there is no further transfer of angular momentum over the course of one orbit. In Mercury's case, the
Tidal_locking
A secular resonance is a type of orbital resonance between two bodies with synchronized precessional frequencies. In celestial mechanics, secular refers
Secular_resonance
Maintenance of a particular orbit
and Moon will in general perturb the orbital plane. For a Sun-synchronous orbit, the precession of the orbital plane caused by the oblateness of the
Orbital_station-keeping
Outermost moon of Neptune
5 million mi; 0.339 AU), with an average orbital period of 27.5 Earth years. S/2021 N 1 has an average orbital eccentricity of 0.50 and an average inclination
S/2021_N_1
Pollution around Earth by defunct artificial objects
second-stage in an elliptical geocentric orbit with a low-perigee, thus ensuring rapid orbital decay and avoiding long-term orbital debris from spent rocket bodies
Space_debris
satellite orbit's precession. In effect, this is the plane normal to the orbital precession pole of the satellite. It is a kind of "average orbital plane"
Laplace_plane
Complex type of orbit
A Rosetta orbit is a complex type of orbit. In astronomy, a Rosetta orbit occurs when there is a periastron shift during each orbital cycle. A retrograde
Rosetta_orbit
Device for measuring or maintaining orientation
used to demonstrate the principle. A simple case of precession, also known as steady precession, can be described by the following relation to a moment[which
Gyroscope
Movement of an object which leaves at least one point unchanged
velocity (spin angular velocity and orbital angular velocity) and angular momentum (spin angular momentum and orbital angular momentum). Mathematically
Rotation
Moon stops moving north or south
direction of Earth's axis and to the rotation of the Moon's orbital nodes (lunar nodal precession) once every 18.6 years. The standstill position does not
Lunar_standstill
Branch of astronomy
planets, moons, and comets. Orbital mechanics focuses on spacecraft trajectories, including orbital maneuvers, orbital plane changes, and interplanetary
Celestial_mechanics
Irregular moon of Uranus
orbit cannot accurately describe their long-term orbital motions. Instead, proper or mean orbital elements are used to describe the long-term orbits of
Margaret_(moon)
Irregular moon of Neptune
than its nodal precession period, which causes its longitude of pericenter (ϖ) to precess in the opposite direction from its orbital motion. This behavior
Psamathe_(moon)
direction of the orbiting object and a specified plane of reference. orbital mechanics orbital node One of two points at which the plane of an orbit intersects
Glossary_of_astronomy
Moon of Jupiter
irregular moons like Kore. On average, Kore has an orbital period of about 769 days (2.11 years) with an orbital eccentricity of 0.338 and an inclination of
Kore_(moon)
Description of the dynamics of magnetization in a solid
used for a differential equation describing the dynamics (typically the precessional motion) of magnetization M in a solid. It is a modified version by Gilbert
Landau–Lifshitz–Gilbert equation
Landau–Lifshitz–Gilbert_equation
Series of orbital maneuvers
match of the orbital velocities and position vectors of the two spacecraft, allowing them to remain at a constant distance through orbital station-keeping
Space_rendezvous
Nodal precession is rotation of a planet's orbital plane. Nodal precession is more easily seen as distinct from periastron precession when the orbital plane
Exoplanet orbital and physical parameters
Exoplanet_orbital_and_physical_parameters
Ancient Greek analogue astronomical computer
extant use of epicyclic gearing. It also tracked the precession of the Moon's elliptical orbit around the ecliptic in an 8.88 year cycle. The mean Sun
Antikythera_mechanism
Irregular moon of Neptune
orbital resonances, nor does it share orbit similarities with other Neptunian irregular moons. Its orbit exhibits both apsidal and nodal precession with
Halimede_(moon)
American climate scientist and marine geologist
ago as due to the out-of-phase response of the polar ice sheets to orbital precession. Raymo has also advanced stratigraphy and dating of the past via oxygen
Maureen_Raymo
Region of lands around the Mediterranean Sea that have a Mediterranean climate
"Astrochronology for the Messinian Sorbas basin (SE Spain) and orbital (precessional) forcing for evaporite cyclicity" (PDF). Sedimentary Geology. 140
Mediterranean_basin
Classical statement of gravity as force
relativity. Newton's theory does not fully explain the precession of the perihelion of the orbits of the planets, especially that of Mercury, which was
Newton's law of universal gravitation
Newton's_law_of_universal_gravitation
Star in the constellation Aquarius
found to orbit the star. The planetary system is also notable for the orbital properties of its planets. It is the only known system of orbital companions
Gliese_876
periapsis ω (measured on orbital plane): ϖ = Ω + ω {\displaystyle \varpi =\Omega +\omega } which are derived from the orbital state vectors. Define the
Longitude_of_periapsis
Period of time for the ecliptic longitude of the Sun to increase 360°
particular orbital period. Another type is the sidereal year (or sidereal orbital period), which is the time it takes Earth to complete one full orbit around
Tropical_year
Moon of Neptune
be either in the state of forced precession or even chaotic rotation (like Hyperion) due to its highly elliptical orbit. In 2016, extended observations
Nereid_(moon)
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