R.J. Walrecht

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R.J. Walrecht

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Planisphere (30N latitude)

Planisphere (30N latitude)
»

Planisphere for Equator area (10 degrees N and 10 degrees S)

Planisphere for Equator area (10 degrees N and 10 degrees S)
Planisphere for Equator area (10 degrees N and 10 degrees S) - druk 1 »

Build-it-yourself sundial for 30 S

Build-it-yourself sundial for 30 S
»

Posterset De Sterrenkunde

Posterset De Sterrenkunde
»

Planisphere (40 n latitude)

Planisphere (40 n latitude)
Shows The Starry Sky For Every Moment Of The Year »

Planisphere for 40 degrees South

Planisphere for 40 degrees South
»

Posterset Het zonnestelsel

Posterset Het zonnestelsel
»

Planisphare fur 50 N

Planisphare fur 50 N
»

Zelfbouw zonnewijzer

Zelfbouw zonnewijzer
»

Posterset Het heelal

Posterset Het heelal
»

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