NASA’s Webb Reaches Alignment Milestone, Optics Working Successfully | NASA

While the purpose of this image was to focus on the bright star at the center for alignment evaluation, Webb’s optics and NIRCam are so sensitive that the galaxies and stars seen in the background show up. At this stage of Webb’s mirror alignment, known as “fine phasing,” each of the primary mirror segments have been adjusted to produce one unified image of the same star using only the NIRCam instrument. This image of the star, which is called 2MASS J17554042+6551277, uses a red filter to optimize visual contrast.

Godfrey’s note: click on the nasa picture right of the article.

Source: NASA’s Webb Reaches Alignment Milestone, Optics Working Successfully | NASA

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