(a) Equator is the starting line for all the parallels. It is zero degree parallel.
(b) Tropic of Cancer – 23 1/2° North parallel.
(c) Tropic of Capricorn – 23 1/2° South parallel.
(d) Arctic circle – 66 1/2° North parallel.
(e) Antarctic circle – 66 1/2° South parallel.