Scientists say dwarf planet 2007 OR10 may be larger than thought

A team of scientists combined data from two space observatories in order to obtain a better understanding of the distant celestial object located within our Solar System. The results showed that the 2007 OR 10 dwarf planet is not only the largest, but also the most unnamed in the solar system. Astronomers and planet scientists found the object to be quite dark and rotating slower than most of the other objects and planets that orbit the Sun. One daily spin takes almost forty-five hours. The new K2 results have 2007 OR 10 ranked third in the Solar System’s largest unnamed bodies and as third among the list of approximately half a dozen dwarf worlds. (Image: nasa.gov. Credit: Konkoly Observatory/Andras Pal/Hungarian Astronomical Association/Ivan Eder NASA/JHUAPL/SwRI Dwarf Planets are mysterious. Ceres is the only dwarf planet that lies within the main asteroid Belt between Jupiter and Mars. The Sun orbits all dwarf planets from faraway, above Neptune 1AU. One AU equals one Earth-to Sun distance. This small, extremely cold dwarf planet is very distant from Earth. It’s difficult to see them properly even using large telescopes. We have learned little about them over the last ten years. This mysterious mystery is best illustrated by Pluto. The largest dwarf planet, Pluto, was little more than a blurry blob before NASA’s New Horizon’s spacecraft visited it last year. Even with the keen eye of Hubble Space Telescope, we couldn’t tell much about its size. All that has changed is the ability to combine data from different sources to get basic information about celestial objects. Combining data allows us to get more information about distant dwarf planets. 2007 OR 10’s orbit in comparison to the orbits of Eris and Pluto. Image: Wikipedia. Combining data for study (*] OR 10 The international team of scientists from Australia, Germany, and Hungary used NASA’s repurposed Kepler Space Telescope to find out more about the planet-hunter Kepler, which was known as K2 under the Infrared Herschel Space Observatory. Herschel was an ESA mission that included NASA participation. The Astronomical Journal (citation above) published the scientists’ results. Geert Barentsen is a Kepler/K2 researcher at NASA’s Ames Research Center, California’s Silicon Valley. He said that K2 had made an important contribution to revising the size of 2007. OR 10.. The real power lies in how K2 and Herschel data combine to give such rich information on the object’s properties. Geert Barentsen, Kepler/K2 research scientist at NASA’s Ames Research Center in California’s Silicon Valley, stated: “K2 has made yet another important contribution in revising the size estimate of 2007 OR.” It was this method that we were able to track the light changes of the objects seen by the Kepler telescope in unprecedented time sequences and with greater precision. 2007 OR bigger than expected. The new measurement shows the dwarf planet has a diameter 1 ,535 kms (155 mi) larger than what we previously believed. This figure is about 100 kilometers (60 mile) higher than Makemake, which is the second largest dwarf planet and approximately one-third of Pluto. Haumea is another dwarf planet that has an oval shape. However, it is larger on its long axis 2007 OR 10,, but its total volume is smaller. K2 continues to search for changes in the brightness of distant objects, just as it did in its last mission. A planet passing by or transiting near a star will often show a tiny decrease in brightness. K2 can also look into the Solar System for smaller bodies, such as comets, dwarf planets and asteroids. The Kepler spacecraft can pick up tiny brightness changes and is a great instrument to observe the brightness of distant objects in the solar system. It is difficult to determine how small or large a distant faint object is. Because they are simply points of light, it is difficult to tell if the light that they emit indicates a bigger, more dark object, or one smaller and brighter. It is difficult to see 2007 OR 10 because its orbit is almost the same as Neptune’s, but it is currently twice the distance from the Sun than Pluto. Combining Kepler data and Herschel Data Scientists previously calculated that (*] OR ‘s diameter was approximately 795 mile (1 ,280km). It was impossible to estimate the overall brightness and size of its orbit period because nobody had any idea at that time. They discovered it to be a slow rotating planet, with some unusual features. Some hints were found that there was variation in the brightness of its surface. The researchers used the space telescopes to determine the percentage of the sun that was reflected by either 2007 or 10 using Kepler, and the amount that was absorbed into the atmosphere and radiated back later as heat using Herschel. They were able to determine the size of the dwarf planet and its reflection by combining these data. They found its size 155 mile (250km) larger than they had thought. A larger planet means a stronger gravity and has a darkened surface. It must also be bigger if it reflects more light than the planet. The dark features are different than most dwarf planets that appear to be much brighter. Ground-based observations have shown that 2007 OR 10 has an unusual red colour. Scientists have speculated that the planet’s surface may be covered in methane ices. Andras Pal stated: “Our revised bigger size for (*] OR increases the likelihood that the planet is covered with volatile ices, such as methane, carbon monoxide, and nitrogen. This would easily be lost to space by an object smaller than it.” It is thrilling to discover details about distant worlds, especially when they have such a dark, reddish, and large surface. It was first spotted by astronomers David Rabinowitz, Mike Brown and Meg Schwamb in 2007 as part of a survey that was searching for distant solar system celestial objects using the Samuel Oschin Telescope at Palomar Observatory, a 48-inch-aperture Schmidt camera at the Palomar Observatory in northern San Diego County, California. Dr. Schwamb stated that the names of Pluto-sized bodies tell stories about their characteristics. We don’t know enough about 2007, OR 10 in the past to be able to name it appropriately. We think that we are.

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