Aperture is king
For visual astronomy (looking through the eyepiece at the telescope), aperture is the most important feature of a telescope. Telescopes are light concentrators, so a bigger aperture collects more light and dim objects are brighter. Magnification is not an important consideration for most first-time telescope buyers. For most newcomers to the hobby, it is recommended to start with at least 1200mm of focal length and at least a 6″ mirror. For every 2″ of aperture you add ~72% more light…
