Washburn Observatory. The observatory at the University of Wisconsin,Madison,was built in 1881. It houses a 15 inch refractor telescope. It was a major research facility for about half a century and is now used primarily for public viewing | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Royal Astronomical Society |
Bildgröße: | 5329 px × 3370 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |