Pluto; a year on Pluto takes 248.5 Earth years.
Which planets have the longest years?
Given its distance from the Sun, Neptune has the longest orbital period of any planet in the Solar System. As such, a year on Neptune is the longest of any planet, lasting the equivalent of 164.8 years (or 60,182 Earth days).
Which planets have the longest and shortest years?
Which planet has the longest day and the shortest year? The answer to both questions is Mercury. It orbits the Sun every 88 days, and a Solar Day on Mercury lasts for two orbits which is 176 days.
How long is 1 year on each planet?
The Days (And Years) Of Our Lives
| Planet | Rotation Period | Revolution Period |
|---|---|---|
| Earth | 0.99 days | 365.26 days |
| Mars | 1.03 days | 1.88 years |
| Jupiter | 0.41 days | 11.86 years |
| Saturn | 0.45 days | 29.46 years |
Which planet has 1 day longer than a year?
On Venus, one rotation on its axis takes the equivalent of 243 Earth days and the planet’s orbit around the Sun takes the equivalent of 225 Earth days.
Is there a 9 planet?
Planet Nine is claimed to be five to 10 times as massive as Earth, in an orbit well beyond Neptune. A team led by Kevin Napier of the University of Michigan, Ann Arbor, decided to test whether selection bias was playing a role.
Who has the longest year?
What was the longest year in history? It sounds like a silly question, but it’s not. There is a correct answer: It was 46 BC. Julius Caesar stretched that year out to a whopping size.
What is the smoothest planet?
Jupiter’s large icy moon Europa has the smoothest surface of any solid body in the Solar System. The only prominent relief on its surface are ridges a few hundred metres in height.
Which is the closest celestial body to our earth?
Together with the Moon, Venus and Mars are the planets nearest to the Earth. All of these celestial bodies are continuously held captive to the sun by the effect of gravity; the bodies are continually forced to orbit the sun as the central body in elliptical orbits.
What planet has the shortest years?
Mercury is an extreme planet in several respects. Because of its nearness to the Sun—its average orbital distance is 58 million km (36 million miles)—it has the shortest year (a revolution period of 88 days) and receives the most intense solar radiation of all the planets.
What planet takes 7 years to get to?
FAQ – Spacecraft
| Spacecraft | Target | Time |
|---|---|---|
| Messenger | Mercury | 6.5 years |
| Cassini | Saturn | 7 years |
| Voyager 1 & 2 | Jupiter; Saturn; Uranus; Neptune | 13,23 months; 3,4 years; 8.5 years; 12 years |
| New Horizons | Pluto | 9.5 years |
What is my age on Mars?
A year on Mars is longer than a year on Earth—almost twice as long at 687 days. This is roughly 1.88 times the length of a year on Earth, so to calculate your age on Mars we simply have to divide your Earth age by 1.88.
What is the hottest planet?
Venus is the exception, as its proximity to the Sun and dense atmosphere make it our solar system’s hottest planet. The average temperatures of planets in our solar system are: Mercury – 800°F (430°C) during the day, -290°F (-180°C) at night. Venus – 880°F (471°C)
How long is 1 hour in space?
1 hour in space is 7 years on earth.
Why is Venus called Earth’s sister?
Venus is a terrestrial planet and is sometimes called Earth’s “sister planet” because of their similar size, mass, proximity to the Sun, and bulk composition. It is radically different from Earth in other respects.
Is Venus hot or cold?
The average temperature on Venus is 864 degrees Fahrenheit (462 degrees Celsius). Temperature changes slightly traveling through the atmosphere, growing cooler farther away from the surface. Lead would melt on the surface of the planet, where the temperature is around 872 F (467 C).