An international team of scientists has captured the first observational evidence showing that two planets can share the same orbit around a star.
An international team of scientists has capturedTwo objects that share the same orbit as a planet are common even in Earth’s Solar System and are called Trojans, and the most famous example are the Trojan asteroids of Jupiter — more than 12,000 rocky bodies that are in the same orbit around the Sun as the massive gas planet. When asteroids in Jupiter’s orbit were first discovered, they were named after heroes of the Trojan War, giving rise to the name Trojans to refer to these objects.
“The system features a star at its center, around which the planet PDS 70b is orbiting. On the same orbit as PDS 70b, indicated by a solid yellow ellipse, astronomers have detected a cloud of debris that could be the building blocks of a new planet or the remnants of one already formed,” the European Southern Observatory says.
“Who could imagine two worlds that share the duration of the year and the habitability conditions? Our work is the first evidence that this kind of world could exist,” says Balsalobre-Ruza, a student at the Centre for Astrobiology in Madrid, Spain who ledThis colorful image shows the sky around the faint orange dwarf star PDS 70 . The bright blue star to the right is χ Centauri. | Credit: ESO/Digitized Sky Survey 2.
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