The average distance from the Earth to the Moon is approximately 384,400 kilometers (238,855 miles). This distance varies slightly due to the Moon’s elliptical orbit, ranging from about 356,500 kilometers (221,500 miles) at its closest (perigee) to 406,700 kilometers (252,000 ...
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The term “Solar Family” refers to the collection of celestial bodies that orbit the Sun. This includes the eight planets, their moons, dwarf planets, asteroids, comets, and other small objects within our solar system. All these bodies are bound by ...
Geography is the study of Earth’s physical features, landscapes, and environments, as well as the relationships between people and their environments. It explores the distribution of natural resources, climate patterns, and human activities across the planet. Geography integrates both physical ...
The International Astronomical Union (IAU) is a global organization founded in 1919, dedicated to promoting and safeguarding the science of astronomy. It is responsible for naming celestial bodies, defining astronomical constants, and fostering international collaboration among astronomers. The IAU also ...
A star is a luminous celestial body composed of plasma, generating light and heat through nuclear fusion. The Pole Star, also known as Polaris, is a prominent star located nearly directly above Earth’s North Pole. It is used for navigation ...
A full moon occurs when the Moon is directly opposite the Sun relative to Earth, resulting in its entire face being illuminated. This phase happens once a month and is characterized by the Moon’s bright, round appearance. It marks the ...
Degrees of longitude measure the distance east or west of the Prime Meridian, which is set at 0° in Greenwich, England. Longitude lines, or meridians, run vertically from the North Pole to the South Pole, and are measured in degrees, ...
Parallels of longitude, commonly called meridians, are imaginary vertical lines running from the North Pole to the South Pole. They measure the distance east or west of the Prime Meridian, which is 0° longitude. These lines help in determining time ...
The revolution of the Earth refers to its orbit around the Sun, which takes approximately 365.25 days to complete. This motion is responsible for the changing seasons, as the Earth’s tilted axis causes varying angles of sunlight at different times ...
Aryabhata, an Indian mathematician and astronomer from the 5th century, is credited with stating that the Earth is round and rotates on its own axis. His work, the Aryabhatta, presented revolutionary ideas about astronomy, including the concept that the apparent ...