Question

Celestial bodies, including stars, appear small to us on Earth. Which of the following reason/s can be attributed to this phenomena?

1. Due to their actual distance from Earth
2. Because they emit less light
3. Because of atmospheric distortion
4. Because of their position in the sky

• A. 2, 3
• B. 3, 4
• C. 4 only
• D. 1, 4

Answer 1

Answer:

D. 1, 4

Distance from Earth

• Celestial bodies, including stars, appear diminutive from the vantage point of Earth predominantly due to the profound distances that separate these objects from our planet.
• This phenomenon is characterized by the concept of "angular size" in astronomy.
• The vast distances in space make these objects appear as tiny points of light when observed from Earth. Even though many stars are enormous and much larger than the Sun, their immense distance reduces their apparent size in the night sky.

Their position in the sky

• The apparent size of celestial objects also depends on their position in the sky. 
• Objects situated at zenith (directly overhead) typically appear larger due to the mechanics of visual perception. Nonetheless, even when stars traverse the zenith, their distant disposition still consigns them to the status of minute light sources.
• In contrast, when a celestial object is situated near the horizon, it may appear smaller and less distinct.
• This is due to the fact that we are looking through a more extensive portion of Earth's atmosphere when observing objects near the horizon.