Celestron 21080 is a reflecting telescope on an Altazimuth mount. It is a great choice for beginners who are looking for an easy-to-use telescope that can be used to observe a variety of celestial objects. The telescope comes with a variety of accessories, including two eyepieces (25mm and 6mm), a red dot finder, and a star chart.

The 21080 has a 70mm objective lens, which means that it can collect more light than smaller telescopes. This makes it possible to see fainter objects, such as galaxies and nebulae. The telescope also has a long focal length of 900mm, which provides a magnification of 36x with the 25mm eyepiece and 150x with the 6mm eyepiece. This magnification is sufficient to see the details of planets, such as the rings of Saturn and the moons of Jupiter.