A UC Riverside astronomer and a group of eagle-eyed citizen scientists have discovered a giant gas planet hidden from view by typical stargazing tools.
The planet, TOI-2180 b, has the same diameter as Jupiter, but is nearly three times more massive. Researchers also believe it contains 105 times the mass of Earth in elements heavier than helium and hydrogen. Nothing quite like it exists in our solar system.
Details of the finding have been published in the Astronomical Journal and presented at the American Astronomical Society virtual press event on Jan. 13.
“TOI-2180 b is such an exciting planet to have found,” said UCR astronomer Paul Dalba, who helped confirm the planet’s existence. “It hits the trifecta of 1) having a several-hundred-day orbit, 2) being relatively close to Earth (379 lightyears is considered close for an exoplanet), and 3) us being able to see it transit in front of its star. It is very rare for astronomers to discover a planet that checks all three of these boxes.”
Read more at University of California - Riverside
Image: A gas giant exoplanet that orbits a G-type star, which is similar to TOI-2180 b. (Credit: NASA)