Which instrument would a scientist use to observe distant stars?

Which instrument would a scientist use to observe distant stars?

• A. Telescope
• B. Barometer
• C. Hygrometer
• D. Rain Gauge

Answer: (A)

To observe distant stars, you need a tool that collects faint light and makes distant objects easier to see. A telescope does exactly that by gathering a lot of light with a large aperture and focusing it to form a clearer, sometimes magnified image. This magnification, paired with the ability to resolve fine details, lets us see stars that are far away and faint. There are even space telescopes to avoid atmospheric distortion and get even sharper views. In contrast, the barometer measures air pressure, the hygrometer measures humidity, and the rain gauge measures rainfall. These instruments are used for weather measurements, not for observing distant celestial objects.

To observe distant stars, you need a tool that collects faint light and makes distant objects easier to see. A telescope does exactly that by gathering a lot of light with a large aperture and focusing it to form a clearer, sometimes magnified image. This magnification, paired with the ability to resolve fine details, lets us see stars that are far away and faint. There are even space telescopes to avoid atmospheric distortion and get even sharper views.

In contrast, the barometer measures air pressure, the hygrometer measures humidity, and the rain gauge measures rainfall. These instruments are used for weather measurements, not for observing distant celestial objects.