When a planet makes a complete orbit around the Sun, it is counted as one year. 21.1 km/s Which of the jovian planets has the shortest period of rotation (the shortest day)? Which planet has the shortest day? Which planet is the smallest? 0 votes . 2. Jupiter 3. Mercury. Saturn 5. Is Pluto the farthest planet from the Sun? What planet has the shortest day, at 10 hours? 38.5 km/s 4. Jupiter. Pluto: The dwarf planet Pluto takes 90,553 earth days to go around the sun. Jupiter is the largest planet and the Jovian day (a day on Jupiter) is only 9 hrs 55 mins and 30 secs, a length which is about 1/3 the length of the day on Earth. The reason why the giant planet has a shorter day is because of its rotational velocity with is 28,148.1 15 mph at the equator. A day on Jupiter only takes 9.8 Earth hours! Q. Which planet has the longest year? Mercury. Uranus 4. However, scientists now consider Pluto to be a dwarf planet. answer. If they're out wide, they're spinning slower, and the want to conserve their momentum. This article has Which planet of the solar system has the shortest day lasting under 10 hours? Jupiter's equator rotates a bit faster than its polar regions at a speed of 28,273 miles/hour (about 43,000 kilometers/hour). http://www.enchantedlearning.com/subjects/astronomy/planets/ (A day on Venus is longer than its year; a year on Venus takes only 224.7 Earth days). The long answer is due to the fact that there are two definitions of 'day'. NASA/JPL-Caltech/Space Science Institute. Which planet would float in your bathtub, if your bathtub were large enough for the planet to fit into it? Venus has the longest day of any planet in our solar system.It completes one rotation every 243 Earth days.Its day lasts longer than its orbit. To really get a gist of just how intense the sun’s rays are on Mercury, there’s been scientific reports which propose that heat from the sun on Mer… Jupiter has a small axial tilt of only 3.13 degrees, meaning it has littleseasonal variation during its 11.86-year-long orbit … Which planets has the shortest day? One is called the 'Solar Day… The planet Jupiter has the shortest day of all the eight major planets in the Solar System. Solar System. Comments - NoResponses to “Length of Year for Planets in Order”. Which planet has the longest day? Explain what causes day and night on a planet and why some planets have longer days than others. Mercury's day lasts 59 Earth days, while a day on Venus lasts 243 Earth days. Which was the last planet in the Solar System to be discovered? Earth and Mars. Venus is the hottest planet in our solar system with an average temperature of … Since Jupiter is a gas planet, it does not rotate as a solid sphere. Mercury has the shortest year of any planet in the Solar System. Q. What two planets have the same amount of hours in a sidereal day? The Planet with the Shortest Day: Jupiter. It spins around on its axis once every 9 hr 55 min 29.69 sec. Again Pluto, in 1930. The outer planets Jupiter, Saturn, Uranus and Neptune all have shorter days than Earth. Can you think of TWO things that will Sorry but comments are closed at this time. The largest planet in our solar system by far is Jupiter, which beats out all the other planets in both mass and volume. 1. Which planet has maximum number on moon in our solar system and how many are they? 2. An exoplanet orbiting a star in just over 18 hours, the shortest orbital period ever observed for a planet of its type has been by served by astronomers. Until 2006, Pluto was the planet with the longest period of revolution around the sun, taking 248 years to complete a full revolution. And this is why Jupiter has the shortest days of … Jupiter may be the undisputed king of the planets … When we come to Uranus, the question of how long a day is becomes a bit complicated. What planet has the shortest day? When you observe Jupiter from Earth, you can see some of its features change. This means that Jupiter has the shortest days of all the planets in the Solar System. Neptune: 16 hours, 6 minutes and 36 seconds, but it is a bit more complicated than that. Q. Uranus: 17 hours, 14 minutes and 24 seconds. Q. A. Despite being the largest planet in the solar system, Jupiter spins extremely fast meaning it can boast the shortest day at just under 10 hours. Name the only planet in the Solar System to have one moon. A. Not usually.