One night I noticed a star changing colors and moving perceptibly. But through binoculars, a few dimmer stars in the same field appeared steady. The behavior continued throughout the night, but not a couple of nights later. Why? Allan Hawkinson Carlsbad, New Mexico You’re absolutely right that stars twinkle — and sometimes appear to move aroundContinue reading “Why do some stars appear to twinkle while others don’t?”
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