There are three main types of telescopes, each with unique advantages:
: For beginners, an aperture between 4 and 8 inches (100mm to 200mm) offers the best balance of performance and price. 2. Choosing an Optical Design telescope buying guide for beginners
: A rule of thumb is that the maximum useful magnification is roughly 50x the aperture in inches (or 2x the aperture in millimeters). Advertising 600x on a small scope is usually a red flag for low-quality optics. There are three main types of telescopes, each
: The aperture is the diameter of the main lens or mirror. It determines how much light the telescope gathers. More light means you can see fainter objects (like galaxies) and finer details on bright ones (like the Moon's craters). telescope buying guide for beginners