Assertion: planet's period | /r/HasProperty | the time
Facets:
Source sentences:
text: The sidereal period is the time required for a celestial body within our solar system to complete one revolution with respect to the fixed starsi.e., as observed from some fixed point outside the system.
text: The length of a planet's apparition depends upon its orbital period (i.e. the time it takes the planet to orbit the Sun ) and its position in relation to the Sun and the Earth at any given time.
text: The orbital period is the time a given astronomical object takes to complete one orbit around another object, and applies in astronomy usually to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars.
text: In the case of a planet's moon, the synodic period usually means the Sun-synodic period, namely, the time it takes the moon to complete its illumination phases, completing the solar phases for an astronomer on the planet's surface.
text: Sidereal period, the time required for a celestial body within the solar system to complete one revolution with respect to the fixed stars—i.e., as observed from some fixed point outside the system.
text: The sidereal period of a planet can be calculated if its synodic period (the time for it to return to the same position relative to the Sun and Earth) is known; the sidereal period of the Moon or an artificial satellite of Earth is the time needed for it to return to the same position against the background of stars.
text: The sidereal period of a planet can be calculated if its synodic period (the time for it to return to the same position relative to the Sun and Earth) is known; the sidereal period of the Moon or an artificial satellite of Earth is the time needed for it to return to the same position against the background of stars.