Telescopio refractor - Wikipedia, la enciclopedia libre
Luminova 800mm x 60mm Refractor Telescope | Tasco¨ Outdoors
Telescopios refractores
Amazon.com : Telescopes for Adults, 70mm Aperture and 700mm Focal Length Professional Astronomy Refractor Telescope for Kids and Beginners - with EQ Mount, 2 Plossl Eyepieces and Smartphone Adapter : Electronics
ExploraPro 90AZ Refractor Telescope – 90mm aperture 660mm Focal Length Telescope - Manual Alt-AZ Telescope for with Slow Motion Control on Both Axes – Bonus Smartphone Adapter and remote shutter - Walmart.com