Erde mit Himmelskuppel
Die Distanz Sonne-Erde beträgt ca 150.000.000 km.
Der Durchmesser der Erdumlaufbahn beträgt also ca. 300.000.000 km.
Die Erdumlaufbahn beträgt ca. 300.000.000 km x Pi = ca. 942.000.000 km
Die Erde braucht für diese Distanz ziemlich genau 365 Tage.
(942 000 000 / 365) / 24 = ca. 107 534 km/Stunde
Ziemlich schnell für so ein altes Konstrukt.
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| Section | Natur: Astrofotografie |
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| Camera | DMC-FZ50 |
| Lens | --- |
| Aperture | 5 |
| Exposure time | 2 |
| Focus length | 9.2 mm |
| ISO | 100 |
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