Orion Telescopes and Binoculars is the largest direct-to-consumer brand of quality outdoor optics in the business. Orion Telescopes has been serving amateur astronomers and outdoor adventurers for over 27 years with an extensive assortment of quality products and top-notch customer service and support.
Orion Telescope's website at telescope.com includes a learning center with numerous articles and frequently asked questions. Example of a question answered there: "Can we see equipment left on the moon?"
An extensive glossary of telescope terms is also there, categorized from A to Z. Examples of terms defined: Absolute magnitude, Altazimuth mount, Zenith.
A product wizard can lead you through the steps of choosing a telescope or binoculars.