# How Long Are Days on Other Planets?

When asked how long are days on other planets, the answer varies depending on the frame of reference, seasonal cycles, and location of the world. The quote by Albert Einstein summarizes time as being relative to the observer. If you live on Earth, your time zone is set to Earth time. When you’re on Neptune, the day is almost as long as Earth’s. On Pluto, the year is 248 Earth years long.

## Calculator for length of a day on other planets

When visiting other planets, you may wonder what the length of a day is like. The Earth has a day that lasts about twenty-four hours, but that’s not the case for other planets. A planet’s day is not constrained by its rotation period, so the length of the day on other planets may vary significantly. This calculator for the length of a day on other planets will help you figure out the time it takes to travel between two noons on any other planet.

There are several reasons for this variation in the length of a day on another planet. The most obvious reason is the fact that planets don’t have perfectly circular orbits, so their days are shorter or longer than Earth’s. Therefore, the best way to calculate the length of a day on a planet other than Earth is to measure it in sidereal days, which are rounded up to 24 hours.

The equatorial regions of gas giant worlds, such as Jupiter and Saturn, rotate more slowly than their corresponding parts of the Earth. Thus, the equatorial regions of cloud belts on Jupiter and Saturn are rotating at about nine hours 56 minutes. The poles on Jupiter and Saturn are rotating at about nine hours 50 minutes, so the “canonical” day length of Jupiter is sixteen hours.

## Neptune’s day is almost as long as a day on Earth

A day on Neptune is just over 16 hours long – nearly twice as long as an Earth day. The planet’s temperature is governed by the motions within its interior rather than the rays of the sun. Unlike the other planets in the solar system, Neptune does not sit parallel to the sun. Instead, it is tilted on its side at an angle of 28.3 degrees compared to the Earth’s 23.4-degree tilt.

Scientists have long wondered whether a day on Neptune would be a similar length to a day on Earth. The planet’s gravity is so similar to Earth’s that it causes the strongest winds in the solar system. Neptune’s axis of rotation is tilted at 28 degrees compared to its plane of orbit, similar to Mars’ axial tilt. The gas giant’s rings are also formed by volcanic activity.

The atmosphere on Neptune is composed mostly of hydrogen. Neptune also has smaller amounts of helium and methane, which absorb red light and give the planet its blue coloration. Neptune has an average temperature of -373 degrees Fahrenheit. There are 14 moons orbiting Neptune and six ring systems. The seventh largest moon, Triton, is also thought to be a captured dwarf planet.

## Uranus’s day is almost as long as a day on Earth

In fact, Uranus’s rotation period is nearly as long as that of Earth. Its day-night cycle is seventeen hours long, with the equatorial region experiencing two warm seasons and one cold season. Uranus’s axial tilt is 98 degrees. Because of this, Uranus’s equator is nearly perpendicular to the ecliptic, and its seasons are the most extreme in the solar system.

The length of the day on Uranus varies from 17 hours, 14 minutes, and 24 seconds to nearly eighteen hours on Earth. The rotation of the gas/ice giant causes its days to be nearly the same as Earth’s. During spring and fall, the day and night cycles on Uranus last 17 hours. The planet also rotates very quickly, making its day nearly as long as an Earth day.

Because of its enormous size, Uranus is a great candidate for exploration by humans. Several exploration missions have been proposed by 2021. In the meantime, the Hubble Space Telescope and powerful ground-based telescopes provide valuable information about Uranus. This planet is the fourth largest planet in mass and third largest in radius. Its radius is almost as long as that of Earth.

The Earth’s orbit takes just over 365 days, but Uranus’ day lasts only seventeen hours. Uranus is so far from the Sun that it takes 84.3 Earth years to complete its orbit. The planet travels at 15,290 miles per hour (24,607 kilometers) and is much further away from us than the Sun. Despite its great distance, Uranus’ elliptic orbit is a good candidate for exploration.

## Pluto’s year is 248 Earth years long

It takes Pluto 248 years to complete its orbit around the Sun. One Earth year is equal to about 365.9 months on Pluto. It also takes the dwarf planet 6.5 days to rotate on its axis. There are five known moons of Pluto. Tombaugh discovered Pluto in 1930. A schoolgirl suggested the name. The following diagram shows how the orbits of two distant bodies differ. The distance between Pluto and Charon is approximately twice that of Earth.

Pluto’s orbit is elliptical and tilted, making its orbit more oval than circular. It’s elliptical orbit can take it as close to the sun as 30 astronomical units. An astronomical unit (AU) is one million miles, or about 1.6 million kilometers. Pluto is on average 3.7 billion miles (6.2 billion kilometers) away from the sun, though at certain points it will approach the Sun more than Neptune. It’s closest approach to the Sun was during the perihelion period of 1979-1999.

Although Pluto is no longer considered a planet, its intriguing quarks are still worth studying. Its year is 248 Earth years long and it experiences seasonal changes. As a result, it has a shorter daytime than Earth, but still has a year that is two48 Earth years long. And just like the other planets, Pluto is an interesting place to do research. And if you’re curious about the Pluto mysteries, you can contact Shae Raposa, a Ph.D. student in the Department of Astronomy & Planetary Science at Harvard.

## Saturn’s day is similar to Earth’s

The day on Saturn is the second shortest of the planets. At 10 and a half hours, Saturn’s day is slightly shorter than Earth’s twenty-four-hour day. But the planet’s axis is tilted slightly, just like Earth’s is. Its day also has seasons, though these are slower on Saturn, thanks to its close orbit around the Sun. So, what’s the difference between Earth and Saturn?

Although Saturn and Jupiter orbits are very close to each other, their orbital planes are angled at different angles. Jupiter is slightly more inclined than Saturn’s, so the two are almost perfectly aligned. However, in order to see the differences between Jupiter and Saturn’s orbits, you’ll need to be able to observe their other aspects. The two planets’ orbital planes are tilted by about 12 degrees and thirty degrees, respectively.

In the early 1980s, Voyager and Cassini spacecraft visited Saturn. Researchers used instruments that can detect radio waves and radio signals to calculate Saturn’s day length. However, they still couldn’t nail down the precise rotation period of Saturn. The difference between the day and night time is so slight, scientists couldn’t find an answer until now. Fortunately, Cassini has come to the rescue, as it has a much more accurate measurement of Saturn’s day.

## Mars day is similar to Earth’s

In our solar system, Mars is the second closest planet, after Venus. The planet’s orbit lies outside ours, but we can still observe its surface. Mars has a 24-hour day like Earth, seasonal weather, polar ice caps, canyons, and volcanoes. Even though Mars is so far away, the day on Mars is very similar to the Earth’s. In fact, Mars’ day and night are very similar!

In fact, Mars is very similar to Earth in other ways, such as how the day lasts, and its temperature is very similar. For instance, the rotation axis is tilted the same amount as Earth’s, and Mars’ atmosphere is a thin layer. In fact, Mars’ atmosphere contains only about a hundredth of the air pressure on Earth. Unlike Earth, Mars has no ozone layer.

While the climate on Earth is generally stable, Mars has weather features that are quite different. It experiences dust storms that can cover the planet, creating a red haze. These storms are caused by changes in Mars’ atmosphere and surface, including an uneven heating of its surface. Mars’ dust storms can be so powerful that they shape the planet! They tend to begin in the summer, and the biggest storms are in the southern hemisphere. Meanwhile, smaller dust devil storms are more likely to occur during the day.

Although the Earth’s day is twenty-four hours long, Mars’ day is slightly shorter than Earth’s. The planet spins faster than Earth, so Mars day is 24 hours, 39 minutes, and 35 seconds longer. Mars’ day is similar to Earth’s, and may even have had liquid water on its surface. However, the Sun is not exactly in the center of Mars’ orbit, making it difficult to measure its length.