The star clock (Nocturnal) - AstroMedia
Product number:
103.STU
The star clock, also called a "nocturnal", is a timepiece invented in the Renaissance.
Using the North Star and the Big Dipper to tell the time
With the help of the sidereal clock, the local time (= solar time) can be read at night from the position of the constellation Big Dipper in relation to the pole star. The device consists of two rotating discs, one above the other, with a pointer and a hole in the middle. The date is set on the lower disc. Then the pole star is aimed through the hole and at the same time the pointer is set to the pole pointer of the Big Dipper. In this way, the time can be read on the upper disc. If it is too dark, you can even find the time by feeling it with your fingertips.For teachers and pupils
The star clock is easy to build and is an excellent teaching aid for secondary schools. Like all other astro materials, it can also be used for other group and project work on astronomy and physics.| Aspiration scale: | Easy |
|---|---|
| Time Line: | 30 Min |
Product information "The star clock (Nocturnal) - AstroMedia"
Kit to assemble:
- 1 printed sheet for cutting out of construction cardboard, DIN A4 - 260 g/m²
- Detailed assembly instructions on the sheet
Dimensions of the finished article: Ø of the disc 13 cm, plus handles
Construction time: approx. 30 to 40 minutes
Distributor:
PGI-Skarabäus, Im Kränzliacker 9, 79576 Weil am Rhein, Germany, www.pgi-shop.de
PGI-Skarabäus, Lerchenstrasse 38, 4147 Aesch, Switzerland, www.pgi-shop.ch
Manufacturer: AstroMedia GmbH, Im Wirrigen 30, 45731 Waltrop, Germany, astromedia.de
- 1 printed sheet for cutting out of construction cardboard, DIN A4 - 260 g/m²
- Detailed assembly instructions on the sheet
Dimensions of the finished article: Ø of the disc 13 cm, plus handles
Construction time: approx. 30 to 40 minutes
Distributor:
PGI-Skarabäus, Im Kränzliacker 9, 79576 Weil am Rhein, Germany, www.pgi-shop.de
PGI-Skarabäus, Lerchenstrasse 38, 4147 Aesch, Switzerland, www.pgi-shop.ch
Manufacturer: AstroMedia GmbH, Im Wirrigen 30, 45731 Waltrop, Germany, astromedia.de
Product safety-2
Adult supervision:
Children under 14 years of age should only use the kit under adult supervision to avoid risks from improper handling.
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. Model is made of highly flammable materials.
Use of glue:
When using glue, follow the manufacturer's safety instructions. Work in well-ventilated rooms and avoid skin or eye contact.
This is what you need for the assembly
> a firm, flat work surface
> 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
Quantity
Unit price
To
10
CHF 2.00
To
25
CHF 1.90
-5 %
To
100
CHF 1.80
-10 %
From
101
CHF 1.60
-20 %