- 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 are some fun facts about Eris?
Eris is
the furthest dwarf planet from the Sun
, and is also the most massive currently recognized dwarf planet. Eris is located beyond the orbit of Neptune and beyond the Kuiper belt in a region known as the “scattered disc”.
What is a fact about Eris?
Eris is
one of the largest known dwarf planets in our solar system
. It’s about the same size as Pluto but is three times farther from the Sun. At first, Eris appeared to be larger than Pluto. … Pluto, Eris, and other similar objects are now classified as dwarf planets.
How fast does Eris move?
| Discovery | Semi-major axis 67.864 AU (10.152 Tm) | Eccentricity 0.43607 | Orbital period 559.07 yr (204,199 d) | Average orbital speed 3.434 km/s |
|---|
What are 5 interesting facts about Eris?
- Eris is why Pluto got demoted. …
- Eris was almost considered our 10th planet. …
- The discovery of Eris lead to the classification of ‘Dwarf Planets’. …
- It was named after the Greek goddess of chaos. …
- Eris was first nicknamed “Xena”. …
- Eris has only one moon.
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.
How cold is 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. At 2400 kilometers in diameter, Eris is slightly larger than Pluto.
What is Eris mass?
The mass of Eris from these orbital parameters is
1.67 × 10
22
0.02 × 10
22
kilograms
, or 1.27 0.02 that of Pluto.
What is the largest dwarf planet?
The best-known dwarf planet,
Pluto
is also the largest in size and the second largest in mass. Pluto has five moons.
Where is Eris right now?
Dwarf Planet 136199 Eris is currently in
the constellation of Cetus
.
How big is Pluto vs Eris?
Watching Eris
In addition to measuring Eris’ size, researchers were also able to determine its shape, size and mass. The observations helped scientists determine that Eris’ diameter is 1,445 miles (2,326 kilometers), give or take 7 miles (12 km). That makes it
slightly smaller than Pluto
.
Is there a 10th planet?
Astronomers have found a
tenth planet
, larger than Pluto and nearly three times farther from the Sun as Pluto is today. Temporarily designated 2003 UB313, the new planet is the most distant object yet seen in the solar system, 97 times farther from the Sun than the Earth is.
What is the coldest dwarf planet?
Pluto
was the planet furthest away from the Sun and also the coldest. However, Pluto was declassified as a planet in 2006 and is now known as a dwarf planet.
What is the 11th planet from the Sun?
Eleventh planet (of the Solar System) may refer to Vesta, the eleventh object to be named a planet, later to be reclassified as an asteroid, or to
Uranus
, the eleventh planet from the Sun upon Vesta’s discovery, though this was quickly superseded by new discoveries.
