Correct option is D
The correct answer is (d) Star.
· Stars twinkle because of the Earth's atmospheric turbulence, which causes the light from the stars to bend multiple times as it reaches our eyes. This bending effect, known as atmospheric refraction, creates the characteristic "twinkling" of stars.
· Planets, like Jupiter and Mars, do not twinkle as much because they are closer to Earth and appear as larger points of light, making them less affected by atmospheric disturbances.
· The Moon does not twinkle due to its relatively large size and proximity to Earth, which ensures that its light path is not as impacted by minor atmospheric fluctuations.
Information Booster:
· Twinkling: Scientifically termed as "stellar scintillation," twinkling is more pronounced when stars are closer to the horizon, as their light passes through more of the Earth's atmosphere.
· Why Planets Don’t Twinkle: Planets appear as tiny disks rather than point sources of light, so atmospheric disturbances don’t affect their light as significantly as they do for stars.
· Observation Tips: Stars high above in the sky twinkle less than those near the horizon, as their light travels through a thinner section of the atmosphere.
· Famous Stars: Bright stars such as Sirius and Betelgeuse are popular for their pronounced twinkling effect on clear nights due to their brightness.