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Sunday space: Why is our sun yellow, and what colours are other stars? | The Examiner




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On Christmas night, my 5-year-old cousin was enjoying his new toy telescope and asked me why a star he was looking at was red. He knows that our sun is yellow, and I explained that stars can be different colours – some stars can be red and some stars can be blue. That was a good enough answer for him. However, I would like to explain how and why that can happen. Our sun is a star, much like all the other stars you see in the…

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