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The top documents tagged [arrangement of star]
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ɷ[erich karkoschka (author)] the observer's sky
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![ɷ[erich karkoschka (author)] the observer's sky](https://img.pdfslide.net/doc/345x265/568caaae1a28ab186da28b98/erich-karkoschka-author-the-observers-sky.jpg)