Star is a noun in English. It refers to a celestial body that emits its own light and is seen in the night sky. Stars have been around since the beginning of time， and have always been a source of fascination and awe for humans.
Stars come in a variety of types， sizes， and colors. Stars are typically composed of hydrogen and helium， and the colors of stars vary with their temperature. The hottest stars appear blue while the coolest stars appear red.
Stars can also be classified according to their size and brightness. The brightest stars are known as supergiants， while the dimmest stars are called dwarf stars. Supergiants are usually much larger and more luminous than dwarf stars.
Stars also appear in patterns in the night sky， forming constellations. These constellations of stars are used by navigators and astronomers for orientation and for measuring time.
The study of stars is known as astrology. Astrologers study the positions of stars in the sky to predict future events and to understand the past.
Stars have always been a source of inspiration for humans. In many cultures， stars are seen as a symbol of hope and guidance. They have inspired countless works of art， literature， music， and mythology.
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