perigee
Closest orbital approach
Perigee is the point in an orbit where a satellite or celestial body comes closest to Earth.
The moon's perigee brings it about 225,000 miles from Earth, while its apogee—the opposite point—puts it roughly 250,000 miles away.
A supermoon occurs when the full moon coincides with perigee.
The term extends to any orbital system's closest approach point.
Near-orbit lunar spectacle
- lunarOf the moon
- moonNatural planetary satellite
- tidalOf sea rhythms
- syzygyTrilinear celestial arrangement
waxing · waning · gibbous · crescent · illumination · geocentric · moonrise
Orbital minimum distance point
- apocenterOrbital point most remote
- eccentricityUnconventional behavior or nature
- ellipticalOval-shaped or indirect
- precessionRotating axis gradually reorients
nodes · orbital · trajectory · closest approach · gravitational · satellite · spacecraft · moon
Of the sky above
- astronomyScience of celestial objects
- ephemerisCelestial body position chart
- declinationAngular distance from equator
- ascensionMovement to higher position
transit · zenith · nadir · equinox · solstice · heliocentric · parallax · conjunction
supermoon
Near-orbit lunar spectacle
syzygy · waxing · waning · gibbous · crescent · illumination · geocentric · moonrise
pericenter
Orbital minimum distance point
- apocenterOrbital point most remote
- eccentricityUnconventional behavior or nature
- ellipticalOval-shaped or indirect
precession · nodes · orbital · trajectory · closest approach · gravitational · satellite · spacecraft · moon
celestial
Of the sky above
- astronomyScience of celestial objects
- ephemerisCelestial body position chart
- declinationAngular distance from equator
ascension · transit · zenith · nadir · equinox · solstice · heliocentric · parallax · conjunction · opposition
- spacespace, sun, moon, stars, star
- gravitygravity, graviton, gravity well, gravitational pull, gravity wave
- moonfull moon, lunar, crescent moon, new moon, half moon
- space termsmoon, star, planet, rocket, satellite
- spaceflightlaunch, astronaut, spacecraft, liftoff, orbit
- orbit termsellipse, trajectory, satellite, revolution, rotation