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Why Some Don’t Actually Twinkle

Why do some stars twinkle, while others look perfectly steady. Tonight we follow one simple idea, the motion is not in the star, it is in the unsteady air above your head. From the ground, distant starlight arrives as a near point, and tiny shifts in the air can make it shimmer. A bright planet like Jupiter or Venus arrives as a tiny disk, and many light paths average those shifts into calm. In this quiet night sky journey, you will learn how to tell stars from planets by watching how their light behaves, why twinkling is stronger near the horizon, and why the same star can look different from one night to the next. These videos are designed to let your mind drift through calm cosmic stories, whether you stay awake listening or slowly fall asleep. If you enjoy night sky science like this, consider subscribing for more quiet space journeys. In this episode Why starlight can look restless from Earth Why planets often look steady Why twinkling changes with altitude and air conditions How to spot Venus, Mars, Jupiter, and Saturn by their behavior #twinklingstars #nightsky #astronomy