What is the period of revolution for Venus?
225 days
Venus/Orbital period
What is Eris revolution time?
25.9 hours
As Eris orbits the Sun, it completes one rotation every 25.9 hours, making its day length similar to ours.
What are 3 interesting facts about Eris?
10 Facts About the Dwarf Planet Eris
- An Eridian day is just slightly longer than Earth’s.
- Eris was once thought to be bigger than Pluto.
- Eris is responsible for the big debate over the definition of “planet.”
- It has its own moon.
- Initially, Eris was called Xena.
- Its surface is like Pluto’s heart.
What is the average temperature on Eris?
It has a highly eccentric orbit around the Sun, which causes its surface temperature to vary from -217 degrees Celsius to -243 degrees Celsius. Observations of Eris have led scientists to believe that it has frozen methane on its surface.
Are there 10 planets?
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.
What’s special about Eris?
Eris is the most distant dwarf planet, located beyond the orbit of Neptune. It was discovered in 2005 and was originally classified as a planet. It is the second-largest dwarf planet discovered and it led to both it and Pluto’s demotion from planets to dwarf planets.
Why is Eris so bright?
The bright surface of Eris is most likely composed of a nitrogen-rich ice mixed with frozen methane — as indicated by the object’s spectrum — coating the dwarf planet’s surface in a thin and very reflective icy layer less than one millimetre thick.
Does Venus get cold at night?
Planetary surface temperatures tend to get colder the farther a planet is from the Sun. 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)
Why did Venus become so hot?
Venus is so hot because it is surrounded by a very thick atmosphere which is about 100 times more massive than our atmosphere here on Earth. As sunlight passes through the atmosphere, it heats up the surface of Venus. The heat becomes trapped and builds up to extremely high temperatures.
How many Earth years does it take Eris to orbit the Sun?
Eris takes 557 Earth years to make one trip around the Sun. The plane of Eris’ orbit is well out of the plane of the solar system’s planets and extends far beyond the Kuiper Belt, a zone of icy debris beyond the orbit of Neptune. As Eris orbits the Sun, it completes one rotation every 25.9 hours, making its day length similar to ours.
How big is Eris compared to other planets?
The plane of Eris’s orbit is well out of the plane of the Solar System’s planets and extends far beyond the Kuiper Belt thus beyond the orbit of Neptune, located in a region called the scattered disk. Like Pluto, it’s a little smaller than Earth’s moon. It has a radius of about 722 miles or 1,163 kilometers, thus 1/5 the radius of Earth.
When does the dwarf planet Eris return to perihelion?
Eris has an orbital period of 558 years. Its maximum possible distance from the Sun (aphelion) is 97.65 AU, and its closest (perihelion) is 37.91 AU. It came to perihelion between 1698 and 1699, to aphelion around 1977, and will return to perihelion around 2256 to 2258.
How many days does it take for the sun to rise on Venus?
But the Sun doesn’t rise and set each “day” on Venus like it does on most other planets. On Venus, one day-night cycle takes 117 Earth days because Venus rotates in the direction opposite of its orbital revolution around the Sun.