Wonders of active optics: astigmatic

The video shows the effect of astigmatism of the primary mirror. The stellar images change from a line to a square and then to a line in the perpendicular direction. This is caused by the secondary mirror moving back and forth along the optical axis.



À propos de la vidéo

Date de publication:13 août 1999
Communiqués de presse en rapport:eso9940
Durée:10 s
Frame rate:30 fps

À propos de l'objet


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