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

Sobre o Vídeo

Data de divulgação:26 de Outubro de 2011 às 19:00
Notícias relacionadas:eso1142
Duração:18 s
Frame rate:30 fps

Sobre o objeto

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



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