The Newton reflector telescope - AstroMedia
Product number:
209.NST
A fully functional reflecting telescope with 16x and 30x magnification and Dobsonian mount
Small change, big effect
Isaac Newton (1643-1727) solved the hitherto existing problems of refracting telescopes in 1668 with the invention of his reflecting telescope. He simply replaced the converging lens with a converging mirror. The light is reflected in a bundle and directed sideways into an eyepiece by a small, slanted flat mirror. Newton's first mirrors, which he ground and polished himself with tools he built for the purpose, had diameters of 25 and 50 mm respectively, a focal length of 300 mm and could magnify about 30 times.
We can do what Newton could
The performance of the Astro-Didactic reflecting telescope is about the same as Newton's first homemade instruments. The centrepiece is the main mirror, a spherical precision mirror made of ground and polished glass with a diameter of 70 mm and a focal length of 450 mm, which was specially calculated and manufactured for this kit. The eyepieces are equipped with optics made of acrylic glass. They provide 16x and 30x magnification and allow the viewing of lunar craters and, with careful adjustment of the main mirror, also of Jupiter's moons. For observing sunspots, a solar filter attachment with the Baader AstroSolarTM solar filter foil is available as an accessory. Available as a set here.
In Newton's footsteps
Of course, a telescope made of cardboard cannot compete with a much more expensive massive instrument, but with this kit you have the opportunity to follow in Newton's footsteps and carry out all the assembly steps yourself, and in the end you will be as surprised by the result as Newton himself was by his first reflecting telescope.
You can find an illustrated construction report here.
| Aspiration scale: | Challenging |
|---|---|
| Time Line: | 2,0 Hours |
Product information "The Newton reflector telescope - AstroMedia"
pre-cut and printed construction cardboard
for assembly, 9 x DIN A4
with detailed assembly instructions
magnification: 16- and 30-fold
Tube length: 44 cm, tube opening: 6 cm
Das Newton Teleskop - Deutsch
What you need for the assembly
> a sharp cutter knife, e.g. craft knife
> a good all-purpose glue, e.g. craft glue
> some fine sandpaper, e.g. sand sheet craft file
> scissors
> a blunt knife for folding
> a toothpick or similar to stiffen the ocular tube
> a few paper clips
> approx. 12 paper clips or document clips
or simply clothes pegs for fixing
or simply clothes pegs for fixing
> a triangle or a ruler for aligning the main mirror
> a black felt-tip pen
> a gold paint pen
Quantity
Unit price
To
10
€32.90
To
25
€31.26
-5 %
To
100
€29.61
-10 %
From
101
€27.97
-15 %