Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: It occurs with a rate of about 50 arcseconds per year and has a period of about 26,000 years. To account for the effect astronomical coordinates are given in terms of the epoch. It is caused by the torque of the Sun and Moon on the Earth's rotational bulge, which is tilted with respect to the orbital plane. As a result, Vega will be the Pole Star in another 13,000 years. FTP name this effect discovered by Hipparchus of Rhodes
Output:
Science