Here's why:
* Magnification: Telescopes magnify distant objects, allowing us to see details of stars and other celestial bodies that are impossible to see with the naked eye.
* Light Gathering: Telescopes collect more light than our eyes, making fainter objects visible.
* Resolution: Telescopes provide sharper images than our eyes, allowing us to see finer details.
However, other instruments are used to study stars as well:
* Spectrographs: These instruments break starlight into its component colors, revealing information about a star's temperature, chemical composition, and movement.
* Photometers: These instruments measure the brightness of stars, allowing astronomers to study their variability and evolution.
* Interferometers: These instruments combine light from multiple telescopes to create a much larger effective telescope, allowing astronomers to see even fainter objects with higher resolution.
So, while a telescope is the most common instrument used to *view* stars, various other instruments are used to *study* them in great detail.
