Because their temperature seem to change too
no way
White stars are usually the hottest, followed by blue stars and then red stars.
Because their temperature is changing.
Sea stars are different colors due to pigments in their skin called chromatophores, which can produce a range of colors. These colors may help with camouflage, predator avoidance, or communication with other sea stars. Additionally, some species of sea stars can change color depending on their environment or activities.
The earth is rotating around the sun. Therefore the position of other stars (although millions of light years away) are in different orientation to that of the earth.
This is a simple one to answer. The Earth rotates and as it rotates, the stars seem to move across the sky.
The groups of stars whose positions seem to change as Earth moves are called constellations. These groupings of stars are a result of patterns that early astronomers and cultures identified in the sky. The apparent movement of constellations is due to Earth's rotation on its axis and its orbit around the Sun.
Stars actually do rotate.
Stars have many colors. They are: red, blue, brown, white, yellow, etc.
You can pick any group of stars that seem to form a certain shape. That would be an asterism.
When the sun or moon or stars are low in the sky (near the horizon), the light from them has to pass through much more air in the atmosphere than when they are high overhead. The extra passage through the atmosphere changes the color of the light reaching an observer.
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