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# Orbital inclination

Orbital inclination measures the tilt of an object's orbit around a celestial body. [1]

54 relations: Accretion disk, American Institute of Aeronautics and Astronautics, Angle, Angular momentum, Apsidal precession, Asteroid, Axial tilt, Azimuth, Beta angle, Binary mass function, Brown dwarf, Cambridge University Press, Degree (angle), Doppler spectroscopy, Dwarf planet, Ecliptic, Equator, Eris (dwarf planet), Exoplanet, Gas giant, HD 33636, Horizontal coordinate system, Invariable plane, Jack Wisdom, Jupiter, Kepler orbit, Kozai mechanism, Latitude, Methods of detecting exoplanets, Minimum mass, Natural satellite, Neptune, Orbit, Orbit of the Moon, Orbital elements, Orbital inclination change, Orbital mechanics, Orbital plane (astronomy), Peter Goldreich, Plane of reference, Planet, Pluto, Red dwarf, Retrograde and prograde motion, Reviews of Geophysics, Rotation around a fixed axis, Satellite, Spherical law of cosines, Star system, Sun, ... Expand index (4 more) »

## Accretion disk

An accretion disk is a structure (often a circumstellar disk) formed by diffused material in orbital motion around a massive central body.

## American Institute of Aeronautics and Astronautics

The American Institute of Aeronautics and Astronautics (AIAA) is a professional society for the field of aerospace engineering.

## Angle

In plane geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

## Angular momentum

In physics, angular momentum (rarely, moment of momentum or rotational momentum) is the rotational equivalent of linear momentum.

## Apsidal precession

In celestial mechanics, apsidal precession or orbital precession is the precession (rotation) of the orbit of a celestial body.

## Asteroid

Asteroids are minor planets, especially those of the inner Solar System.

## Axial tilt

In astronomy, axial tilt, also known as obliquity, is the angle between an object's rotational axis and its orbital axis, or, equivalently, the angle between its equatorial plane and orbital plane.

## Azimuth

An azimuth (from the pl. form of the Arabic noun "السَّمْت" as-samt, meaning "the direction") is an angular measurement in a spherical coordinate system.

## Beta angle

The beta angle (\boldsymbol) is a measurement that is used most notably in spaceflight.

## Binary mass function

In astronomy, the binary mass function or simply mass function is a function that constrains the mass of the unseen component (typically a star or exoplanet) in a single-lined spectroscopic binary star or in a planetary system.

## Brown dwarf

Brown dwarfs are substellar objects that occupy the mass range between the heaviest gas giant planets and the lightest stars, having masses between approximately 13 to 75–80 times that of Jupiter, or approximately to about.

## Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

## Degree (angle)

A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees.

## Doppler spectroscopy

Doppler spectroscopy (also known as the radial-velocity method, or colloquially, the wobble method) is an indirect method for finding extrasolar planets and brown dwarfs from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.

## Dwarf planet

A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite.

## Ecliptic

The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.

## Equator

An equator of a rotating spheroid (such as a planet) is its zeroth circle of latitude (parallel).

## Eris (dwarf planet)

Eris (minor-planet designation 136199 Eris) is the most massive and second-largest (by volume) dwarf planet in the known Solar System.

## Exoplanet

An exoplanet or extrasolar planet is a planet outside our solar system.

## Gas giant

A gas giant is a giant planet composed mainly of hydrogen and helium.

## HD 33636

HD 33636 is a binary system located approximately 94 light-years away in Orion constellation.

## Horizontal coordinate system

The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane.

## Invariable plane

The invariable plane of a planetary system, also called Laplace's invariable plane, is the plane passing through its barycenter (center of mass) perpendicular to its angular momentum vector.

## Jack Wisdom

Jack Wisdom (born 1953) is a Professor of Planetary Sciences at the Massachusetts Institute of Technology.

## Jupiter

Jupiter is the fifth planet from the Sun and the largest in the Solar System.

## Kepler orbit

In celestial mechanics, a Kepler orbit (or Keplerian orbit) is the motion of one body relative to another, as an ellipse, parabola, or hyperbola, which forms a two-dimensional orbital plane in three-dimensional space.

## Kozai mechanism

In celestial mechanics, the Kozai mechanism or Lidov–Kozai mechanism or Kozai–Lidov mechanism, also known as the Kozai, Lidov–Kozai or Kozai–Lidov effect, oscillations, cycles or resonance, is a dynamical phenomenon affecting the orbit of a binary system perturbed by a distant third body under certain conditions, causing the orbit's argument of pericenter to oscillate about a constant value, which in turn leads to a periodic exchange between its eccentricity and inclination.

## Latitude

In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface.

## Methods of detecting exoplanets

Any planet is an extremely faint light source compared to its parent star.

## Minimum mass

In astronomy, minimum mass is the lower-bound calculated mass of observed objects such as planets, stars and binary systems, nebulae, and black holes.

## Natural satellite

A natural satellite or moon is, in the most common usage, an astronomical body that orbits a planet or minor planet (or sometimes another small Solar System body).

## Neptune

Neptune is the eighth and farthest known planet from the Sun in the Solar System.

## Orbit

In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.

## Orbit of the Moon

The Moon orbits Earth in the prograde direction and completes one revolution relative to the stars in about 27.322 days (a sidereal month) and one revolution relative to the Sun in about 29.530 days (a synodic month).

## Orbital elements

Orbital elements are the parameters required to uniquely identify a specific orbit.

## Orbital inclination change

Orbital inclination change is an orbital maneuver aimed at changing the inclination of an orbiting body's orbit.

## Orbital mechanics

Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other spacecraft.

## Orbital plane (astronomy)

The orbital plane of a revolving body is the geometric plane on which its orbit lies.

## Peter Goldreich

Peter Goldreich (born July 14, 1939) is an American astrophysicist whose research focuses on celestial mechanics, planetary rings, helioseismology and neutron stars.

## Plane of reference

In celestial mechanics, the plane of reference (or reference plane) is the plane used to define orbital elements (positions).

## Planet

A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.

## Pluto

Pluto (minor planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.

## Red dwarf

A red dwarf (or M dwarf) is a small and relatively cool star on the main sequence, of M spectral type.

Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is the central object (right figure).

## Reviews of Geophysics

Reviews of Geophysics is a quarterly peer-reviewed scientific journal published by Wiley-Blackwell on behalf of the American Geophysical Union.

## Rotation around a fixed axis

Rotation around a fixed axis or about a fixed axis of revolution or motion with respect to a fixed axis of rotation is a special case of rotational motion.

## Satellite

In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit.

## Spherical law of cosines

In spherical trigonometry, the law of cosines (also called the cosine rule for sides) is a theorem relating the sides and angles of spherical triangles, analogous to the ordinary law of cosines from plane trigonometry.

## Star system

A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction.

## Sun

The Sun is the star at the center of the Solar System.

## Terrestrial planet

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals.

## The Astronomical Journal

The Astronomical Journal (often abbreviated AJ in scientific papers and references) is a peer-reviewed monthly scientific journal owned by the American Astronomical Society and currently published by IOP Publishing.

## Triton (moon)

Triton is the largest natural satellite of the planet Neptune, and the first Neptunian moon to be discovered.

## 2 Pallas

Pallas, minor-planet designation 2 Pallas, is the second asteroid to have been discovered (after Ceres), and is one of the largest asteroids in the Solar System.

## References

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