The Newton reflector telescope - AstroMedia
Pre-cut cardboard kit for a fully functional reflecting telescope with 16x and 30x magnification and a 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: | 10 Hours |
12 pre-punched and printed sheets of construction cardboard, DIN A4
Incl. accessories:
5 acrylic glass lenses, Ø 16.5 mm, focal lengths 30 - 65 mm
1 main mirror, spherical, Ø 70 mm, focal length 450 mm
1 secondary mirror, 15.5 x 22.0 mm
Detailed assembly instructions Features: 16x and 30x magnification
Dimensions of the built article: approx. 44 x 26 x 16 cm
Construction time: approx. 10 - 12 hours
Distributor:
PGI-Skarabäus, Im Kränzliacker 9, 79576 Weil am Rhein, Germany, pgi-shop.de
PGI-Skarabäus, Lerchenstrasse 38, 4147 Aesch, Switzerland, pgi-shop.ch
Manufacturer: AstroMedia GmbH, Im Wirrigen 30, 45731 Waltrop, Germany, astromedia.de
Adult supervision:
Children under 14 years of age should use the kit under adult supervision to avoid risks from improper handling.
Be careful with small parts:
Hazard of suffocation! Keep small parts out of the reach of small children.
Risk of injury:
Be particularly careful when handling pointed and sharp parts! Use sharp tools carefully, if necessary take appropriate safety measures to avoid injuries.
Fire hazard:
Keep away from open fire and heat sources. Product contains highly flammable materials.
Be careful with light bundling: Do not leave lenses in direct sunlight as they can create a focal point.
Danger from sunlight:
Never look directly at the sun through the telescope without using a suitable solar filter as this can cause serious eye damage.
Use of adhesive:
When using adhesive, follow the manufacturer's safety instructions. Work in well-ventilated rooms and avoid skin or eye contact.
Intended use:
The kit may only be used in accordance with the enclosed instructions. Independent modifications can affect the functionality and safety of the built model.
Das Newton Teleskop - Deutsch or simply clothes pegs for fixing
€34.50
€32.78
€31.05
€27.60