Kit to build an astronomical telescope as described by Johannes Kepler
The surprisingly sharp and bright image is upside-down as usual with astronomical telescopes. The factor of magnification is 10x, ideal for moon craters and even the moons of Jupiter.
The lenses of a Kepler telescope are both convex, producing an upside-down image, which is no problem for astronomical observations. At the same time the field of view is MUCH larger than the one of a Galilean telescope, which uses a convex objective lens and a concave eyepiece lens. This has the advantage of producing an upright image, but it also limits the field of view significantly.
With our kit for a GalileoTelescope (see below), you can make the comparison yourself!
This kit is not pre-punched, the parts need cutting out with scissors or a craft-knife
The kit includes the OptiMedia lenses 3, 7, and 9
Magnification: 10x
Construction time: 35 min
Size: 5 x 5 x 30 (-45) cm
An Extra Lens
Johannes Kepler developed and improved the Galilean telescope. Instead of just one converging lens, he took two and thus enabled much higher magnifications. The upside-down image does not interfere with astronomical observations, which is why almost all lens telescopes are still built according to this construction principle today. Thanks to the additional field lens, it has an astonishingly large, bright image at ten times magnification.
Suggestion
The performance of the telescope can be further improved by reducing the opening of the objective lens with a round diaphragm. The image will then be less bright, but sharper. Using our inexpensive tripod adapter (see below), the telescope can be mounted on any standard photo or video tripod. This stops the small vibrations from being handheld and the telescope gives a clearer picture.
For Teaching
The Kepler telescope is easy to build and is ideal teaching material at Secondary School level. It is also ideal for Scout Groups and project work on the subject of astronomy and physics.
