Venus has the longest rotation period (day) of all the major planets in the Solar System. While the Earth takes 23 hrs 56 mins 04 secs to complete one rotation, Venus takes 243.16 ‘Earth days’ to spin once through 360 degrees.
Which planet is the fastest rotation?
Exoplanet Beta Pictoris b is the fastest-spinning known planet. At between 8 million and 20 million years old, the Beta Pictoris system, 63.4 light-years away, is still in its formative stage.
Which planet has least rotation period?
1 Answer. Planet Jupiter shortest rotation period 9.9 hours.
Does Saturn spin fast?
Orbit and Rotation
Saturn has the second-shortest day in the solar system. One day on Saturn takes only 10.7 hours (the time it takes for Saturn to rotate or spin around once), and Saturn makes a complete orbit around the Sun (a year in Saturnian time) in about 29.4 Earth years (10,756 Earth days).
Which planet rotates fastest around the sun?
It only takes 88 days for Mercury to orbit around the sun. No other planet travels around the sun faster. The planet Venus is so bright in the night sky that you may think it is a star.
Which is the most dangerous planet?
0.015% 0.007% 3.5% 64% Page 2 Venus is the most dangerous planet in the solar system: its surface is at 393°C, hot enough to melt lead. It’s even hotter than the planet Mercury, which is closest to the Sun. Venus’ atmosphere is acidic and thick.
Why does Uranus spin backwards?
Uranus was likely hit by a very large planetoid early in its history, causing it to rotate “on its side,” 90 degrees away from its orbital motion. Venus rotates backwards compared to the other planets, also likely due to an early asteroid hit which disturbed its original rotation.
Is there a 9 planet?
The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and then the possible Planet Nine. If you insist on including Pluto, it would come after Neptune on the list.
What planet has longest day?
So, 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. It orbits the Sun every 224.65 Earth days, so a day is nearly 20 Earth days longer than its year.
What planet has the longest night?
How long is a day on each planet?
| Planet | Length of Day | |
|---|---|---|
| in Earth Days | in Hours | |
| Mercury | 176 | 4222.6 |
| Venus | 117 | 2802.0 |
| Mars | 1.03 | 24.7 |
How does it rain diamonds on Neptune?
Diamond is denser than the methane, ammonia, and water left in the ice layer, so the carbon crystal would start to sink toward the planet’s core. It would accumulate new layers as it falls when it touches other isolated carbon atoms or diamonds, allowing individual diamond blocks to reach a size meters in diameter.
Is Saturn hot or cold?
With an average temperature of minus 288 degrees Fahrenheit (minus 178 degrees Celsius), Saturn is a pretty cool planet. Although there are some small differences as one travels from the equator to the poles, much of Saturn’s temperature variation is horizontal.
Why does Saturn move the slowest?
Even though Saturn rotates slightly slower than Jupiter, it is more oblate because its rotational acceleration cancels a larger fraction of the planet’s gravity at the equator. … *Time required for the planet to return to the same position in the sky relative to the Sun as seen from Earth.
Which planet is most like Earth?
Kepler-452b (a planet sometimes quoted to be an Earth 2.0 or Earth’s Cousin based on its characteristics; also known by its Kepler Object of Interest designation KOI-7016.01) is an exoplanet orbiting the Sun-like star Kepler-452 about 1,402 light-years (430 pc) from Earth in the constellation Cygnus.
What planet is closest to the sun?
Mercury—the smallest planet in our solar system and closest to the Sun—is only slightly larger than Earth’s Moon. Mercury is the fastest planet, zipping around the Sun every 88 Earth days.