Astronomers of Columbia University reported the discovery of the second superluna, which rotates around the exoplanets with the size of Jupiter. This is reported in the article published in the Nature Astronomy magazine.
Giant Exolun rotates around the planet Kepler 1708B, which is located 5500 light years from the ground in the direction of the Constellation of the Swan and Lyra. It is about a third less than a satellite with neptune, which was discovered by the team of scientists earlier in orbit around another gas giant – Kepler 1625b.
Both exolunas are likely to consist of a gas that is held by gravitational attraction. Perhaps they were originally planets who fell into orbit around an even larger gas giant. Such systems are located away from parent stars who could tear them away from each other.
To confirm the discovery made by the transit method when the brightness of the star decreases due to the passage on its background of the object, observations will be required from other space telescopes, such as Hubble. Some specialists believe that scientists stumbled upon fluctuations in data due to a star or error in instruments.