Researchers discover the fourth dwarf planet with ring

Researchers discover the fourth dwarf planet with ring

The discovery is now for the third time since just few years, when scientists found ring around the solar system, which is not planet.

On Jan. 21, the astronomy team observed Haumea via 12 telescopes scattered across Europe. This allowed the planetary researchers to build a better theory about the size and shape of dwarf planet.

New research published today in the journal Nature and led by Jose Ortiz from the Sierra Nevada Observatory in Granada, Spain, adds some new information to the dwarf planet's fact file.

It is estimated that the rings could be as wide as 70km and encircles the planet at a distance of around 1,000km from its surface. And we know it's shaped like an ellipsoid, and how dense it is - which tells us more about what it's like on the inside too.

Haumea's ring has a radius of almost 1,500 miles, the team discovered, and it moves very slowly in contrast with its host planet. An entire day on the dwarf planet lasts only four hours. Two separate teams of astronomers - one led by Ortiz at the Sierra Nevada Observatory, the other led by Mike Brown at Caltech in the United States - claimed to have discovered it in close proximity to each other, leading to a dispute that delayed its official naming.

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Astronomers discovered the first-known "egg" that later became an official dwarf planet, called "Haumea" to have unexpected thin ring-like bands made up of particles and debris, circling around it.

Hauma was also one of a handful of objects that actually led the IAU to rethink the definition of a planet altogether, and reclassify Pluto as a dwarf planet.

Astronomers believe there's another dwarf planet surrounded by objects orbiting in the space.

Aside from those instances, the Haumea ring is the first time we've detected this, so we're in some pretty unfamiliar territory - but the researchers hint we may be about to observe an awesome trend in the characteristics of these faraway, mysterious minor planets. Unfortunately, the astronomers have no clue, because the way rings form around giant planets don't seem to mirror how a ring formed around Haumea.

The astronomers also clarified the parameters Haumea - along the longest axis of the planetoid, at least 2.3 thousand kilometers longer than previously thought. Saturn's rings, for example partly came from Enceladus, one of its 53 moons.

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