Scientists discover rare backward-spinning star in a distant planetary system

The system K2-290 consists of three stars and has two planets orbiting the main star, K2-290 A.

In a new development, scientists in Denmark have recently discovered a distant planetary system harbouring two planets that orbit a star rotating backwards. Simon Albrecht, a scientist with Aarhus University with his colleagues have found two stars that rotate backwards in a planetary system, which, as per reports, is 897 light years away from the Earth.


The system K2-290 consists of three stars and has two planets orbiting the main star, K2-290 A. In a normal manner planetary system, the planets and their stars rotate in the same direction. For example in our solar system, the Sun spins in almost the exact same direction as Earth and other seven planets.


According to the scientists, when K2-290 A is compared with both planets’ orbits, its rotational axis is tilted by approximately 124 degrees, which indicates that the star spins in the opposite direction to its two orbiting planets. Even though this misalignment has been observed before in other planetary systems, the reason given for the misalignment is the turbulence during star formation as stated in other theories.


However, Albrecht and his colleagues maintained that the whole system is misaligned because of the presence of a companion star perhaps K2-290 B, which could have exerted gravitational forces that moved the disc.

India Scanner News Network

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