Telescopy n. : The art or practice of using or making telescopes.

Example:
is it possible to see the american flag on the moon from the earth ?

Taxonomy
Telescopes, Reviews, Low Price, Telescope Accessories, Telescope Eyepieces, Spotting Scopes, Binoculars, Eyepieces, Meade, Zhumell, Celestron, Customer Service, Dobsonian Telescopes, Tubes, Zoom, Shop, beginners, Vixen.

Defination from the web:
Telescope: Telescopes.com is a premier online retailer of telescopes, telescope eyepieces and telescope accessories. ... TelescopeEyepieces 1.25 inch Eyepieces 2 inch Eyepieces Specialty Eyepieces Zoom Eyepieces ALL Telescope Eyepieces ...