No planet has.
(Planet Saturn has a year lasting about 29 Earth years.)
No planets have a 29 earth-day year. The planet with the shortest year is Mercury, 'cause it's closest to the sun and has the highest orbital speed. It takes Mercury just a little bit short of 88 earth-days to complete a trip about the sun. In comparison, the earth's only natural satellite, the moon, takes about 27.32 days to orbit our planet.
Saturn - 2.5 years, 2-3 ret/sign/Whole zodiac 29 years
If you are asking what planet has the least days in a full trip around the sun, it would be the planet Mercury, the moon has the least days in a trip with 29, however it is not counted as a planet.
no
No, a planet's day cannot be longer than its year. A day is defined as the time it takes for a planet to complete one full rotation on its axis, while a year is the time it takes for the planet to complete one orbit around its star. A planet's year is always longer than its day.
Mercury is the planet with an 88-day year.
On this planet, a day is longer than a year because the planet has a very slow rotation on its axis. This means it takes longer for the planet to complete one full rotation (a day) than it does to complete one orbit around its star (a year).
Venus
A planets day (solar day) is the time it takes to rotate once on its axis relative to the sun, the synodic period. A year on a planet is the time taken for the planet travel once around the sun.
January 29, 1982. He will turn 29 on this day in the year 2011.
In a regular year, the 88th day of the year is March 29. In a leap year, the 88th day of the year is March 28.
In a regular year, the 150th day of the year is May 30. In a leap year, the 150th day of the year is May 29.