Pete - Your animation is a beautiful thing (I like the sheep too). But do you think this would ahve been a major thing to the builders of Stonehenge, if the period was 47 years, as i think you suggest? I had a discussion this evening about prehistoric lifetimes and was personally arguing for a decent lifespan (sparing unpleasant diseases etc) but would such a rarely -repeated spectacle attract so much attentionj so as to be noticeable and recognised as periodidcally astounding and worth looking out for next time? Yes I have been down the pub. Perhaps you're not saying it's a neolithic spectacle anyway, in which case I Take It All Back, and anyway I do not intend to be a stirrer.
Rhiannon