A special lens shows the telescope getting ready for work in the coming months.
"Even when we tested in Houston, we didn't have starlight illuminating the primary mirror in this configuration. So this was actually a new thing for us," Feinberg said, clarifying that testing on Earth was performed with lighting diodes.
The new NIRCam view, he noted,"wowed the team, and that's one of the reasons I think people wanted to share it." Bonus image! When it’s time to focus, sometimes you need to take a good look at yourself.This “selfie” taken by Webb of its primary mirror was not captured by an externally mounted engineering camera, but with a special lens within its NIRCam instrument. #UnfoldTheUniverse pic.twitter.com/XtzCdktrCANIRCam is capable of taking images of the 18 primary mirror segments, and it generated the selfie for engineering and alignment purposes, NASAFriday .
"NIRCam will be used throughout nearly the entire alignment of the telescope's mirrors," NASA said of the alignment process. "It is, however, important to note that NIRCam is operating far above its ideal temperature while capturing these initial engineering images, and visual artifacts can be seen in the mosaic."
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