A planetary year is one orbit of a planet around the sun.
A system of celestial bodies grouped around a sun.
1971
One planetary year.
As is true of all the planets, Jupiter is closest to the sun when it is at perihelion. Planetary orbits are elliptical, and so there is one point per planetary year when they are at their closest, and another point when they are farthest out.
I would define a "planetary year" as the time it takes to make one complete orbit around the sun. The farther from the sun you go the farther the distance one orbit is (larger radius = larger circumference). The length of the planetary year depends upon the distance from the sun and the orbital speed of the planet. This website has some handy information about the planets in our solar system. http:/wwwzperiodzenchantedlearningzperiodzcom/subjects/astronomy/planets -------------------------------------------------------------------------------------- It should be noted however that some farther away planets have shorter planetary years than earth and some closer planets have longer planetary years (due to orbital speed).
A planetary year is the amount of time it takes a planet to orbit the Sun. A planetary year on Earth is 365.26 days.
It depends which planet you are on. On Earth an planetary year is 365 +/- days. On Saturn a single year is almost 30 earth years.
A system of celestial bodies grouped around a sun.
Approx 687 days.
1971
The time it takes for a planet to finish a orbit around the sun.
One planetary year.
I would say almost 100,000 a year.
According to the merriam Webster dictionary, the definition of planetary is:Main Entryplan·e·taryPronunciation\ˈpla-nə-ˌter-ē\FunctionadjectiveDate16071 a: of, relating to, being, or resembling a planet b: erratic , wandering c: having a motion like that of a planet d: immense 2 a: of, relating to, or belonging to the earth : terrestrial b: global , worldwide 3: having or consisting of an epicyclic train of gear wheels
The galaxis are bigger than planetary nebulae, that are bigger than planetary systems.
As is true of all the planets, Jupiter is closest to the sun when it is at perihelion. Planetary orbits are elliptical, and so there is one point per planetary year when they are at their closest, and another point when they are farthest out.
Someone who studies planetary systems is called a planetary scientist