light gathering power

Light gathering power refers to a telescope's ability to collect and focus light from distant objects, allowing us to see faint celestial bodies. This capability depends on the size of the telescope's aperture, which is the opening through which light enters. A larger aperture can capture more light, making it possible to observe dim stars and galaxies that smaller telescopes cannot detect. Essentially, the greater the light gathering power, the clearer and brighter the images of distant astronomical objects, enhancing our understanding of the universe.