An historical astronomical instrument,the heliotropii telioscopici or helioscope,used for observing and following the sun's motion. The first one was designed by Christoph Scheiner (1575-1650) to help him observe sunspots. The instrument projects a telescopic image of the sun onto a white piece of paper in a dark room. Color enhancement of BM8770 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NYPL / Science Source |
Bildgröße: | 2514 px × 3094 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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