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
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