- Stars are very far from the Earth. : āϤ⧰āĻžāĻŦā§ā§° āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻĒā§°āĻž āĻŦāĻšā§āϤ āĻĻā§ā§°āϤ āĻĨāĻžāĻā§āĨ¤
- Their light passes through moving layers of the Earth's atmosphere. : āϤ⧰āĻžā§° āĻĒā§āĻšā§° āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻŦāĻžāϝāĻŧā§āĻŽāĻŖā§āĻĄāϞ⧰ āĻāϞāĻŽāĻžāύ āϏā§āϤ⧰⧰ āĻŽāĻžāĻā§ā§°ā§ āĻĒāĻžā§° āĻšāϝāĻŧāĨ¤

- These air layers bend the light, causing twinkling. : āĻāĻ āĻŦāĻžāϝāĻŧā§ā§° āϏā§āϤ⧰āĻŦā§ā§°ā§ āĻĒā§āĻšā§° āĻŦā§āĻāĻāĻžāĻ āĻĻāĻŋāϝāĻŧā§, āϝāĻžā§° āĻĢāϞāϤ āĻāĻŋāĻŽāĻāĻŋāĻŽ āĻĻā§āĻāĻž āϝāĻžāϝāĻŧāĨ¤
- Planets are much closer to Earth than stars. : āĻā§ā§°āĻšāĻŦā§ā§° āϤāĻžā§°āĻžā§° āϤā§āϞāύāĻžāϤ āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻāĻā§°āϤ āĻĨāĻžāĻā§āĨ¤
- They appear as small discs, not tiny points of light. : āϏā§āĻāĻāĻžā§°āĻŖā§ āĻā§ā§°āĻšāĻŦā§ā§° āϏ⧰⧠āĻŦā§āϤā§āϤ⧰ āĻĻā§°ā§ āĻĻā§āĻāĻž āϝāĻžāϝāĻŧ, āϤāĻžā§°āĻžā§° āĻĻā§°ā§ āϏ⧰⧠āĻŦāĻŋāύā§āĻĻā§ āύāĻšāϝāĻŧāĨ¤
- Because their light is steadier, planets do not twinkle much. : āϏā§āĻāĻŦāĻžāĻŦā§ āĻā§ā§°āĻšā§° āĻĒā§āĻšā§° āϏā§āĻĨāĻŋā§° āĻšāϝāĻŧ āĻā§°ā§ āϏāĻžāϧāĻžā§°āĻŖāϤ⧠āĻāĻŋāĻŽāĻāĻŋāĻŽ āύāĻā§°ā§āĨ¤
Key Point: Stars twinkle because they are distant point lights, but planets appear as discs and their light remains steady.
āϤāĻžā§°āĻžāĻŦā§ā§° āĻŦāĻšā§āϤ āĻĻā§ā§°āϤ āĻĨāĻāĻž āĻŦāĻžāĻŦā§ āĻŦāĻžāϝāĻŧā§āĻŽāĻŖā§āĻĄāϞāϤ āĻĒā§āĻšā§° āĻŦā§āĻāĻāĻžāĻ āĻāĻŋāĻŽāĻāĻŋāĻŽ āĻā§°ā§, āĻāĻŋāύā§āϤ⧠āĻā§ā§°āĻšāĻŦā§ā§° āĻāĻā§°āϤ āĻĨāĻāĻžā§° āĻŦāĻžāĻŦā§ āϏāĻžāϧāĻžā§°āĻŖāϤ⧠āĻāĻŋāĻŽāĻāĻŋāĻŽ āύāĻā§°ā§āĨ¤