The Desktop Planetarium Kit allows you to construct a classical armillary sphere, the standard instrument for observer-centred astronomy for over 2000 years.
This Desktop Planetarium will allow you to visualise the movement of sun, moon, planets, and fixed stars above and below the horizon for any location on Earth and any day of the year.
-Meridian adjustable for all angles including north and south pole
-Ecliptic with dates, degree scale, and stellar constellations
-Equinoctial with apparent local time, twilight zones, and lengths of day and night
-Lunar orbit with moveable nodes and eclipse indicators
-Foam rubber planets that can be positioned freely on the ecliptic
-Constructed from four layers of cardboard, nearly as strong as laminated wood
Pre-punched kit with gold, black, red, blue, and white printing.
Construction time: 12 - 18 hours
Includes: planet spheres, axles, and PVC bearings.
Height: 34cm, Diameter: 33cm
You will need to supply simple tools, such as a craft knife, and also adhesive and (if required) paint.
Instructions can bedownloaded here - http://www.astromediashop.co.uk/New_files/Desktop%20Planetarium.pdf
Construction in pictures (German text) is available here - http://michelswunderland.de/solderiron/planets.html