18 augustus 2017

Grote planetoïde blijkt eigenlijk een embryonale planeet te zijn

Artistieke impressie van Sylvia en diens manen

Artistic representation of the triple asteroid system showing the large 270-km asteroid Sylvia surrounded by its two moons, Romulus and Remus. The differentiated interior of the asteroid is shown through a cutaway diagram. The primary asteroid of the system may have a dense, regularly-shaped core, surrounding by fluffy or fractured material. The two moons are shown to be strongly elongated, and composed of two lobes, as suggested by the recently observed occultation data by the moon Romulus.

Door waarnemingen van professionele telescopen te combineren met waarnemingen die verricht zijn door amateurs, zijn astronomen tot de conclusie gekomen dat de grote planeto

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