Sidereal year, from one time a particular star is in a given position to the next time 365.25636 days. Anomalistic year, from the time the Earth is at its closest to the Sun to the next time 365.25964 days. What causes the seasons? The Earth in southern summer and winter. The short answer is the tilt of the Earth or put more impressively, the obliquity of the ecliptic. The axis of the Earth is tilted by 23.4 degrees to the plane in which it travels around the Sun, the ecliptic.
1 In the film adaptation of Harry Potter and the Philosopher's Stone, Flamel's first name is spelt as Nicholas, adding an h in the subtitles and the book Hermione Granger reads.  Nicolas Flamel is a chapter title in Harry Potter and the Philosopher's Stone.
(Warner Bros.). Veronica Rocha. Actor David Legeno, who played a werewolf in the Harry Potter film series, found dead Sunday in Death Valley. British actor David Legeno, best known for playing a werewolf in the Harry Potter film series, was found dead Sunday in a remote wash in Death Valley, officials said.