In lunar astronomy, libration is the cyclic variation in the apparent position of the Moon that is perceived by observers on the Earth and caused by changes...

mechanics, the Lagrange points (/ləˈɡrɑːndʒ/; also Lagrangian points or libration points) are points of equilibrium for small-mass objects under the gravitational...

In orbital mechanics, a libration point orbit (LPO) is a quasiperiodic orbit around a Lagrange point. Libration is a form of orbital motion exhibited...

7° north of the equator and the north pole is visible. This is called libration in latitude. The nodes are points at which the Moon's orbit crosses the...

Libration (from the Latin verb librare "to balance, to sway"; cf. libra "scales") is a type of reciprocating motion in which an object with a nearly fixed...

and perigee requires a more elaborate calculation. Also, due to lunar libration it is not uncommon to see up to 101% of the full moon or even up to 5%...

of the lunar surface is visible due to cyclical shifts in perspective (libration), making parts of the far side of the Moon visible. The Moon has been...

The Derg or Dergue (Amharic: ደርግ, lit. 'committee' or 'council'), officially the Provisional Military Administrative Council (PMAC), was the military junta...

Libration point orbit – Quasiperiodic orbit around a Lagrange point Robert Farquhar (1966). "Station-Keeping in the Vicinity of Collinear Libration Points...

crater Herschel was considered to be a more likely explanation for the libration. In 2022, scientists at the Southwest Research Institute identified a...

repeated observations from Earth, due to the phenomena of libration and parallax. Librations are primarily caused by the Moon's varying orbital speed due...

far side is occasionally visible from Earth due to oscillation and to libration. The remaining 82 percent remained unobserved until 1959, when it was...

looking for a photometrically confirmable concentration of dust at the libration (Lagrangian) points in 1951. After a change in method suggested by Josef...

scientist of his time. Refinements of these laws to include physical librations have been made, and they have been generalized to treat other satellites...

appearance, and the location near the limb can limit visibility due to libration. The most favorable time for viewing this feature is near the full moon...

last occurred in 1977 (for the American timezones). A small horizontal libration is visible comparing their appearances. By the 19-year metonic cycle the...

eastern limb of the Moon. The visibility of this formation is affected by libration, and even under favorable conditions it is highly foreshortened. It lies...

Lagrangian points; the average period of their libration is about 150 years. The amplitude of the libration (along the Jovian orbit) varies from 0.6° to...

orbit is both somewhat elliptical and inclined to its equatorial plane, libration allows up to 59% of the Moon's surface to be viewed from Earth (though...

foreshortened when viewed from the Earth, and visibility is subject to libration. The outer rim of Gibbs is not quite circular, and an outward bulge to...

surface is subject to the effects of libration, and the crater can be hidden from sight during an unfavorable libration. Even when visible, however, the crater...

Anything past 90°E or 90°W would not be seen from Earth, except for libration, which makes 59% of the Moon visible. Longitude on the Moon is measured...

Areosynchronous Areostationary Lagrange points Distant retrograde Halo Lissajous Libration Lunar Sun Heliocentric Earth's orbit Mars cycler Heliosynchronous Other...

side of the Moon, but it is often brought into sight from Earth due to libration. Hume lies just to the west-northwest of the much larger Hirayama, and...

are several classes of co-orbital objects, depending on their point of libration. The most common and best-known class is the trojan, which librates around...

that can be viewed. The visibility of this crater is also affected by libration of the Moon. As the eastern rim of Regnault lies across the rim of Volta...

that at some point it was in a 1:4 forced secondary spin–orbit libration. This libration could have provided Enceladus with an additional heat source....

Areosynchronous Areostationary Lagrange points Distant retrograde Halo Lissajous Libration Lunar Sun Heliocentric Earth's orbit Mars cycler Heliosynchronous Other...

perturbing body—in this case, Neptune. Relative to Neptune, the amplitude of libration is 38°, and so the angular separation of Pluto's perihelion to the orbit...

No. Title Length 1. "Acceptance (Aske)" 1:30 2. "Disciple's Libration (Lost in the Nine Worlds)" 9:06 3. "The Cosmic Echoes of Non-Matter (Immaterial...