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Explore Scientific Bresser Galileoscope 50mm Refractor Telescope Build it Yourself and Learn Gscope Kit

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$49.99

$ 22 .99 $22.99

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About this item

  • Galileoscope telescope kit includes all of the parts and instructions needed for young explorers to build their own 50mm refractor
  • Assembly is quick and requires no tools or adhesives
  • Enjoy views of the lunar surface, Jupiter’s Galilean moons, Saturn’s rings and bright star clusters
  • Kit includes a 20x eyepiece and a custom accessory that can be assembled as a 2x Barlow lens for a power of 50x or a 17x Galilean eyepiece with a right-side-up field of view less than 1/2° wide so the user can experience the views Galileo had of the the expansive night sky
  • Learn basic optical concepts, including how lenses form images and how magnification affects field of view



Product Description

telescope accessory adult astronomy kid 8-12 5-7 telescopio professional dobsonian planeta refractor

The Galileoscope Kit includes everything you need to build your own refracting telescope.

The Galileoscope is a high-quality telescope kit created by astronomers, optical engineers, and science educators. Because it was produced and distributed by volunteers, it is still available at low cost to support science education worldwide. Hundreds of thousands of kits are already in use in more than 100 countries.

While assembling the kit, which requires no tools or adhesives, you can learn basic optical concepts, including how lenses form images. With your completed 2-inch-diameter, 25- to 50-power telescope, you can enjoy sharp views of lunar craters and mountains, Jupiter and its moons, and Saturn’s rings. The kit is augmented with free, standards-based optics-education and observing activities, available in multiple languages. The Galileoscope is suitable for students of all ages from 8 to 88!

The Original Galileoscope, Developed by Leading Astronomers, Optical Designers, and Educators

"I am surprised that my Galileoscope has become my working scope. Yet, I am reminded of what we often hear in the amateur astronomy community - The best telescope is the one you use most." - David O. Treviño, Cloudy Nights

Created as a cornerstone project for the 2009 International Year of Astronomy (IYA), the Galileoscope telescope kit solved a long-standing problem: the lack of a high-quality, low-cost kit suitable for both optics education and celestial observation. The Galileoscope was also a cornerstone project of the 2015 International Year of Light (IYL).

Over the course of the project managed by volunteers and promoted mainly through word-of-mouth, more than a quarter-million Galileoscope kits have been distributed to teachers, students, and other enthusiasts in more than 110 countries for science education and public outreach.

The program was only expected to last through the IYA, but the global astronomy education and outreach community loved the kit and asked its creators (Stephen M. Pompea, Richard Tresch Fienberg, Douglas N. Arion, Thomas C. Smith, and Douglas Isbell) to keep it in production, and after nearly ten years of serving the educational STEM community that team was preparing to wind down.

But the demand by the educational community has remained strong, and a search ensued to find a worthy successor of the Galileoscope. Explore Scientific was approached in late 2018 to take over manufacturing and distribution, and we both felt the project was a good fit for Explore Scientific.

Now we can ensure that educators and students around the world can continue the legacy of unlocking the learning process of exploring the universe with telescopes that people assemble themselves with the original Galileoscope Kit!

The Galileoscope is a high-quality telescope kit created by astronomers, optical engineers, and science educators. Because it was produced and distributed by volunteers, it is still available at low cost to support science education worldwide. Hundreds of thousands of kits are already in use in more than 100 countries.

While assembling the kit, which requires no tools or adhesives, you can learn basic optical concepts, including how lenses form images. With your completed 2-inch-diameter, 25- to 50-power telescope, you can enjoy sharp views of lunar craters and mountains, Jupiter and its moons, and Saturn’s rings. The kit is augmented with free, standards-based optics-education and observing activities, available in multiple languages. The Galileoscope is suitable for students of all ages from 8 to 88!

Specifications

Objective diameter 50 mm (2 inches)
Objective focal length 500 mm (f/10)
Eyepiece focal length 20 mm
Magnification 25x (50x with Barlow)
Field of view 1 1/2° (3/4° with Barlow)
Eyepiece eye relief 16 mm (22 mm with Barlow)
Eyepiece barrel diameter 1 1/4 inches (31 3/4 mm)
telescope accessory adult educational kid 8-12 5-7 telescopio professional dobsonian planeta refract

School Children use the Galileoscope in Flagstaff, Arizona

Photo: Stephen M. Pompea, NOAO

telescope accessory adult astronomy kid 8-12 5-7 telescopio professional dobsonian planeta refractor

About Us

Based out of Springdale, Arkansas, Explore Scientific is an optics company committed to designing, building and selling high-quality observation instruments and accessories for all skill levels. Since 2008!


Luciene
Reviewed in the United States on October 19, 2024
I've been obsessed astronomy for quite some time now, and I can say that this telescope is not that bad, sure, the price might be higher than it should be, but it's exactly what is advertised, the only problem I found with it was that the first time I bought it, these was a missing lens. Although I changed it and everything was okay, no need to pay extra shipping tax and it was alright. So overall a nice product.
BigShoppingRiver Cruiser
Reviewed in the United States on September 4, 2022
Its worth only if you actually really want to assemble a telescope. Otherwise why buy this for $70 instead of a Celestron 70mm travelscope(twice the aperture area) for $80 , and includes tripod, diagonal and much better eyepieces for $80 ?If you do want to build it, and experiment with it - and it is fun to do that - then get a cheap 10mm Celestron Plossl or svbony or gso for $10-15, and a 2x barlow. And paint the internals with a non-reflective black paint especially the focuser tube its terrible. It will completely transform the performance of this telescope.Tip on focusing - it is hard to focus but the trick is to twist the focuser tube while pushing/pulling it to focus. This will make it easy to move the tube. A little lube compound on the tube won't hurt either.Have fun!
Charlie
Reviewed in the United States on August 27, 2022
You learn how lenses work. A bit hard to point. Reasonable images
jose s hernandez
Reviewed in the United States on July 27, 2022
I hate to armed the product when.is difficult to.do that
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