Worlds of David Darling
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CELESTIAL MECHANICS




   • altitude
   • analemma
   • annual variation
   • antinode
   • apex
   • aphelion
   • apoapsis
   • apogee
   • apparition
   • apsis
   • argument of perihelion
   • ascending node
   • aspect

   • barycenter
   • Barycentric Dynamical Time (TDB)
   • Besselian elements
   • Besselian year
   • big LEO
   • braking ellipses
   • bulge of the Earth

   • celestial coordinates
   • celestial equator
   • celestial mechanics
   • celestial pole
   • celestial sphere
   • central meridian
   • chaotic control
   • circular orbit
   • circular velocity
   • Clarke Belt
   • colure
   • conic sections
   • conjunction
   • contact
   • convergent point
   • co-orbital
   • Coriolis effect
   • co-rotation
   • culmination

   • dawn-dusk orbit
   • day
   • decaying orbit
   • declination
   • deep space
   • descending node
   • direct ascent
   • direct motion
   • dynamical time

   • Earth-orbit rendezvous
   • eccentric orbit
   • eccen
   • ecliptic
   • ecliptic coordinates
   • ellipse
   • elongation
   • ephemeris
   • epoch
   • equation of light
   • equator
   • equatorial coordinates
   • equatorial orbit
   • equinox
   • escape velocity
   • extragalactic reference frame

   • focus (orbital)
   • following

   • general precession
   • GEO
   • geodetic precession
   • geostationary orbit (GSO)
   • geosynchronous orbit
   • geosychronous/geostationary transfer orbit (GTO)
   • GMT (Greenwich Mean Time)
   • graveyard orbit
   • gravity assist
   • gravity gradient
   • gravity gradient stabilization
   • greatest elongation

   • halo orbit
   • helical rising
   • heliocentric
   • heliocentric coordinates
   • HEO
   • Hohmann orbit
   • horizon
   • horizon coordinates
   • hour
   • hour angle
   • hyperbola
   • hyperbolic orbit
   • hyperbolic velocity

   • inclination
   • inequality
   • International Celestial Reference Frame (ICRF)

   • Julian date (JD)
   • Julian epoch

   • Keplerian orbit
   • Keplerian rotation curve
   • Kepler's equation
   • Kepler's laws of planetary motion

   • Lagrangian point
   • latitude variation
   • LEO (low Earth orbit)
   • libration
   • limb correction
   • line of nodes
   • Lissajous orbit
   • local horizon
   • local standard of rest
   • longitude at the epoch
   • longitude of the ascending node
   • longitude of perihelion
   • lower transit
   • lunar-orbit rendezvous
   • Lyapunov orbit

   • mean motion
   • mean motion resonance
   • mean place
   • MEO (medium Earth orbit)
   • meridian
   • Metonic cycle
   • Molniya-type orbit
   • month

   • nadir
   • neutral point
   • New Style date
   • node
   • noon
   • North Pole
   • nutation

   • obliquity
   • opposition
   • orbit
   • orbit decay
   • orbital element
   • orbital migration
   • orbital period
   • orbital resonance
   • orbital velocity

   • parabola
   • parabolic orbit
   • parabolic velocity
   • parallactic displacement
   • parking orbit
   • periapsis
   • perigee
   • perihelion
   • perturbation
   • planetocentric and planetographic coordinates
   • Platonic year
   • polar distance
   • polar orbit
   • pole
   • position angle
   • preceding
   • precession
   • prime meridian
   • proper motion

   • quasistationary orbit

   • radius vector
   • rectangular coordinates
   • regression of nodes
   • retrograde
   • revolutione
   • right ascension

   • Saros
   • seasons
   • secular
   • secular acceleration
   • secular parallax
   • semi-major axis
   • sidereal time
   • solar apex
   • Sothic cycle
   • spherical astronomy
   • spherical coordinates
   • stationary point
   • statistical parallax
   • suborbital
   • subsolar point
   • sun-syncronous orbit
   • synchronous rotation
   • synodic
   • synodic period
   • syzygy

   • topocentric coordinates
   • trailing hemisphere
   • trajectory
   • transfer ellipse
   • translunar
   • tropic
   • Tropic of Cancer
   • Tropic of Capricorn
   • True of Date (TOD)
   • true pole
   • two-body problem

   • upper transit
   • UT (Universal Time)

   • vertical circle
   • VHO (very high orbit)

   • walking orbit

   • zenith
   • zodiac