James Webb begins careful, slow process of aligning mirrors | Digital Trends

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With deployment complete, the James Webb Space Telescope team is now embarking on their next challenge: Aligning the telescope's mirror segments.

With the exciting process of deployment complete, the James Webb Space Telescope team is now embarking on their next challenge: Aligning the telescope’s mirror segments. This slow, months-long process is required to fine-tune the individual optics into one large, accurate telescope.

To achieve that, the engineers began by sending commands to the 126 actuators which will move the primary mirror segments as well as six devices that position the secondary mirror to ensure that they were working. With that confirmed, they could begin moving the segments off of the snubbers that they were sitting on during launch to absorb vibrations in a process that will take around 10 days.

 

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