Raoul Lannoy


During the first week-end of october 2010, the frenchspeaking amateur astronomers federation organized a study about various ways to show stars for educational purposes.

It happened in a very beautiful  Walloon village, near the french border, at Vierves-sur Viroin.

We learned how to create, with paper, scissors and glue a planisphere, an animated zodiac (showing the difference between the astrological and the astronomical zodiacs).

We also leanrned how to build a star counter (we cut a 12 cm wide hole in a paper, attach a 26 cm long thread to it, put the other end in our mouth and close an eye: what we see through the hole is 1% of the entire sky. We count the stars we see through it and repeat this several times at different heights.

A game, outside is about recreating the Big Dipper 7 stars with threads running from an observer to a friend representing one of the stars. The length of the threads is relative to the stars distances from Earth. That way, we have an idea of the 3 dimensional Big Dipper (some stars are bending their knees, others are standing on seats, to represent the constellation.

Also, disks with or without (many) lines were representing stars' brightnesses and we tried to estimate their apparent and absolute magnitudes. 

It was a way, through various exercizes, kits and modules, to show where stars are, etc....It was very interesting !





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    About Me

    Born in Belgium in 1957 (from a Belgian father and an American mother). Here, everything seems a lot more complicated: more taxes, more government, more languages, more people per square kilometer or mile, more light pollution, but, nevertheless, as much passion for things going on up there, naturally or man made. This was thanks to the first time I saw 2001: A Space Odyssey back in 1968, followed by the promises of the Moon. One weakness was my dislike for maths, which led to human science studies (law and a specialization in insurance). I've been working since 1982 in the...


    Location:Antwerp, Antwerp
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