The Tropic of Cancer is the furthest north latitude on the planet where the sun may be seen directly above. The Tropic of Capricorn is the southernmost point on Earth where the sun may be seen straight overhead. The Tropic of Capricorn is located around 23.4 degrees south of the Equator. The Tropic of Cancer is located around 30.5 degrees north of the Equator.
During the summer months, when we are in the northern hemisphere, these two lines are also associated with the highest and lowest temperatures on Earth. The Tropic of Cancer is the place where there is no more night and no more day, only sunlight 24 hours a day. The temperature remains constant at 50 degrees Celsius (122 degrees Fahrenheit). This is because the sun is always directly over the point, so it does not heat or cool anything nearby.
At the other end of the spectrum is the Tropic of Capricorn. Here the sun is always directly below the point, so it heats up everything around it. The temperature can reach 50 degrees Celsius (122 degrees Fahrenheit) during the day but drops down to 0 degrees Celsius (32 degrees Fahrenheit) at night. This is because all the energy from the sun is being absorbed by the atmosphere or earth's surface at this location.
These are the only two places on Earth where the sun is visible every day of the year.
Aside from the equator (0 degrees), the North Pole (90 degrees North), and the South Pole (90 degrees South), there are four notable latitude parallels: I the Cancer Tropic (23 1/2 deg N) in the Northern Hemisphere. (ii) the Tropic of Capricorn (23 1/2 deg S) in the Southern Hemisphere. (iii) The Antarctic Circle (54 deg N) because it marks the southern limit of snow and ice, and (iv) the Arctic Circle (90 deg N) because it is where the Earth's axis of rotation meets its surface.
The Cancer and Capricorn tropics lie within the same hemisphere, so they represent the limits of the summer season. Plants and animals tend to be tropical or subtropical near these lines. Moving away from them brings you into a cooler climate zone.
These are the only two permanent tropics on our planet, because the other two are not fixed but rather they wander around their own orbit around the sun. As a result, the locations of the tropical zones vary each year.
Currently, the Cancer Tropical Zone is located in southeast Asia and the Indian Subcontinent, while the Capricorn Tropical Zone is found in South America. But many scientists think that over time these zones may move to other parts of the world. For example, during some past ice ages, all of North America was covered in tropical forests, before the climate changed and caused the trees to retreat south toward the equator.
Capricorn's Tropic is located 23.4 degrees south of the Equator. The Tropics refer to the region between the Tropics of Cancer and Capricorn. They are the only region on Earth where days are always long, but nights can be very short or even longer than days. The term "Tropical" originally referred to people from the tropics, but it has since become a generic term for anything related to the sun at its zenith.
The Tercqual (or Tercequally) System is a large, well-defined lunar system that extends from a point just north of the Moon's equator to a point near the moon's south pole. It was named after Terces, one of Apollo 11's (US) astronauts. The name was chosen by his wife, Joan Bailon Astin, a former Miss America contestant who went on to become an actress. She selected the name because it was the number she had married with. The system contains many bright features that appear as lines in photographs taken from space vehicles such as the Apollo spacecraft. These features were first noted by scientists working on the Lunar Orbiter missions, which made hundreds of high-resolution photos from about 250 miles (400 km) above the surface during several months in 1968.
The Tropic of Cancer is significant in Earth's geography because it not only marks the northernmost point where the sun's rays are directly overhead, but it also marks the northern boundary of the tropics, which is the region that extends from the equator north to the Tropic of Cancer and south to the Tropic of Capricorn. The word "tropical" comes from the Greek for "turning up to the west," referring to the direction in which the sun rises each day on the equatorial plane.
The sun's path over the horizon at the Tropic of Cancer is exactly vertical, making midday at the pole equivalent in intensity to sunrise at the equator. Because the sun's rays are always perpendicular to the ground, there is no day or night at the North Pole. But due to the effect of clouds and air pressure, there are 22 hours of daylight with no darkness during the summer months.
At the South Pole it is impossible to see the sun because it is always below the horizon. However, since the polar regions receive the same amount of sunlight per day, it must be midnight somewhere on the planet at all times.
The North Pole is only one side of a globe, so the South Pole is just as important geologically. The South Pole was once believed to be an empty space because anything that falls off the earth ends up there, but this is not true. It has its own ecosystem based on ice and snow that change throughout the year.
The "tropics" are defined as the area limited on the north by the Tropic of Cancer and on the south by the Tropic of Capricorn. Because the sun is permanently high in the sky, there are no seasons in this location. The temperature remains constant around 30 degrees Celsius all year long.
The term "tropics" comes from the Latin word for "turning point": tropicus. This turning point was first identified by Aristotle who called it "the point at which the equator makes its turn towards the north or south".
According to classical mythology, the tropics are the region where Aphrodite, goddess of love, had her temple. Here you will find many beautiful flowers such as jasmine, carnation, and anemone. The tropics are also the place where fruits such as pineapple, banana, and mango grow. Tropical climates can be found in both hemispheres, but they are more common in the Northern Hemisphere.
In science, the tropics are the highest level on Earth's surface within the polar regions.
At the equator, the altitude of the troposphere equals the altitude of the earth's surface. But since the radius of the earth is about 6,371 kilometers (4,032 miles), the height of the troposphere above sea level is about 11 kilometers (6,437 feet).