The point on Earth's surface where the axis of rotation intersects at the northernmost part of the planet.
A geographical region encircling the North Pole, characterized by extreme cold and unique ecological conditions.
The celestial point located at the northern end of Earth's axis, used in navigation and astronomy.
The magnetic pole that corresponds to the direction indicated by a compass needle pointing north.
Example:
北極圏とは北極周辺の地域の事である。
A body of water located around the North Pole, bordered by North America and Eurasia, predominantly frozen except during the summer months.
The sea region within the Arctic Circle, known for its extreme polar climate and significant ice coverage throughout most of the year.
A vast oceanic area that connects to the Pacific Ocean through the Bering Strait, serving as a crucial ecological and geographical zone in the northern hemisphere.
A large species of bear that is primarily found in the Arctic region, characterized by its predominantly white fur, long neck, and exceptional swimming abilities, often preying on marine mammals like seals and various fish.
This species of bear can exceed 2 meters in body length and weigh up to 750 kilograms, with distinctive features such as black markings on its nose and claws, and sometimes a yellowish tinge as it matures.
An iconic Arctic creature known for its ability to navigate icy waters, it plays a crucial role in the marine ecosystem and is adapted to a cold environment, with habits that include both hunting and scavenging for food.
Example:
実のところ、いかなるスピードで移動するにせよ、北極熊は他のおおかたの哺乳動物の２倍のエネルギーを消費する。
A region of the Earth located north of the latitude 66 degrees 33 minutes, characterized by the phenomenon of having at least one day each year when the sun does not set and one day when the sun does not rise.
The area surrounding the North Pole, where unique environmental conditions create extended periods of continuous daylight and darkness, particularly around the solstices.
A geographic zone that defines the boundary for experiences of extreme sunlight and darkness, influencing the ecosystems and climates found in these latitudes.
Example:
北極圏とは北極周辺の地域の事である。
A prominent star located in the constellation Ursa Minor, known for its stability in position in the night sky, serving as a reliable indicator of true north and guiding navigation.
A variable star categorized as a Cepheid variable, its brightness fluctuates between magnitudes 1.95 and 2.05, situated approximately 430 light-years away from Earth.
Recognized as the North Star, its proximity to the celestial north pole makes it a crucial reference point for determining direction in the northern hemisphere, symbolizing guidance and orientation in various cultural contexts.