Widest planet system discovered
Q. Astronomers in UK, US and Australia have discovered the widest planet system comprising which planet in a huge orbit around the star TYC 9486-927-1.- Published on 29 Jan 16a. 2 Mass J2127
b. 2 Mass J2126
c. 3 Mass J2126
d. None of the above
ANSWER: 2 Mass J2126
The planet 2MASS J2126 is about 1 trillion kilometres from its parent star, or about 7000 times the distance from the Earth to the Sun. This takes around 900,000 years to complete a single revolution of the parent star. TYC 9486-927-1 and 2MASS J2126 are moving through space together and are both about 104 light years from the Sun. The planet found in the infrared sky survey is a member of the 45 million year old group of stars and brown dwarfs known as the Tucana Horologium Association.
