Animation of the principle of the occultation

This video shows an occultation. The disc of a Solar System object, such as a dwarf planet, passes in front of a background star. The star abruptly vanishes behind the disc and later reappears, causing a clear drop in total brightness. By timing such occultations at different points on the Earth astronomers can work out the size and shape of distant bodies.


ESO/L. Calçada

A proposito del video

Data di pubblicazione:Mercoledì 26 Ottobre 2011 19:00
Notizie relative:eso1142
Durata:18 s
Frame rate:30 fps

A proposito delll'oggetto

Tipo:Solar System : Interplanetary Body : Dwarf planet
Categoria:Solar System



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