175/366 Tropic of Capricorn

Sunday challenge - using flashlight or torch

Globe, taken by torchlight.

The lines of latitude were named a long time ago — about 2,000 years ago... When the Tropic of Capricorn was named, the sun happened to be in the constellation Capricorn during the December solstice (centuries later, the sun no longer sits in that constellation at that time of year).

Otherwise known as the Southern tropic, Tropic of Capricorn is one of five major circles of latitude that you'll find on a map or globe. These latitudes are the imaginary east-west circles that indicate positions on Earth, when coupled with lines of longitude, which are imaginary circles intersecting the North and South poles and equator. The Tropics of Capricorn and Cancer were delineated because they are both places within the hemisphere where it's possible for the sun to be directly overhead. For ancient travellers who used the heavens to guide their way, these were crucial demarcation lines.
science.howstuffworks.com