Measuring the position of the Sun in the sky, illustration. The device being used here is a sextant, an instrument that is used to measure the angle between an astronomical object (here, the Sun) and the horizon for the purposes of celestial navigation. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / TIM BROWN |
Bildgröße: | 4488 px × 3955 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |