It shows the length of daylight, twilight and nighttime hours at any place on the earth, and the changes of seasons and other astronomical phenomena related to the path of the sun.
(It; shows; the length of daylight, twilight and nighttime hours) (other astronomical phenomena; related; to the path of the sun)
It other astronomical phenomena
shows related
the length of daylight, twilight and nighttime hours
to the path of the sun