verb
- oscillating or moving back and forth in a regular pattern, especially in astronomy referring to the apparent wobbling motion of a celestial body
Usage: astronomy; technical
Examples
- The moon is librating as it orbits Earth, showing us slightly different faces over time.
- Scientists observed the asteroid librating around its axis.
- The satellite appeared to be librating due to gravitational forces.
- Astronomers study librating motions to understand celestial mechanics.
- The planet’s librating movement affects its magnetic field.
- Researchers measured the librating frequency of the distant object.