Top 3 Circumpolar Constellations- Star Maps That Circle the Northern Hemisphere
What are 3 circumpolar asterisms?
Circumpolar asterisms are celestial patterns that are visible year-round from certain latitudes on Earth. These constellations circle the celestial pole, making them visible throughout the entire year. Three well-known circumpolar asterisms include the Big Dipper, Cassiopeia, and Ursa Minor.
The Big Dipper, also known as the Great Bear, is one of the most recognizable constellations in the Northern Hemisphere. It is composed of seven bright stars that form a distinctive shape resembling a dipper or a bear. The Big Dipper is visible from latitudes between 40°N and 70°N, making it a prominent feature in the night sky for many observers.
Cassiopeia, another well-known circumpolar asterism, is named after the queen of Ethiopia in Greek mythology. This constellation is easily recognizable by its W or M-shaped pattern, depending on the time of year and the observer’s location. Cassiopeia is visible from latitudes between 40°N and 70°N, making it a popular target for stargazers in the Northern Hemisphere.
Ursa Minor, also known as the Little Bear, is a small constellation that is often overshadowed by its larger cousin, the Big Dipper. Despite its size, Ursa Minor is significant because it contains Polaris, the North Star. Polaris is the closest star to the celestial north pole and serves as a reliable marker for determining the direction of north. Ursa Minor is visible from latitudes between 50°N and 90°N, making it a circumpolar asterism for observers in the higher latitudes of the Northern Hemisphere.
In conclusion, the Big Dipper, Cassiopeia, and Ursa Minor are three of the most famous circumpolar asterisms. These celestial patterns are visible year-round from certain latitudes on Earth, making them popular targets for stargazers and a fascinating aspect of astronomy.
