Feb 14, 2022 11:15:00

The first starscape photograph taken by James Webb Space Telescope will be released, there is also a selfie image

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NASA's James Webb Space Telescope

The first starscape photograph taken by the James Webb Space Telescope , the successor to the Hubble Space Telescope launched in December 2021, has been released. The James Webb Space Telescope is being developed mainly by NASA, the European Space Agency (ESA), and the Canadian Space Agency (CSA), and is expected to be responsible for the next generation of space observations. ..

Photons Received: Webb Sees Its First Star – 18 Times – James Webb Space Telescope
https://blogs.nasa.gov/webb/2022/02/11/photons-received-webb-sees-its-first-star-18-times/

The James Webb Space Telescope is a space telescope developed as a successor to the Hubble Space Telescope launched in 1990, and its specifications have been significantly upgraded compared to the Hubble Space Telescope launched about 30 years ago. The feature is that the mirror has been changed from a single mirror with a diameter of 2.4 m to a combination of 18 hexagonal segments with a total diameter of about 6.5 m. The James Webb Space Telescope was launched on December 25, 2021,and succeeded in deploying the primary mirror on January 4, 2022. After that, the angle adjustment work of the primary mirror was being carried out.

The James Webb Space Telescope launched by NASA succeeds in fully deploying the mirror --GIGAZINE

Then, on February 11, 2022, the photos taken during the angle adjustment were released. It seems that 18 stars are shown in the photo, but all of these stars are one star called 'HD 84406' in Ursa Major, and the angle adjustment of the primary mirror has not been completed, so the primary mirror It is scattered in 18 pieces, which is the same number as the hexagonal segments that make up.

NASA also publishes 'selfie photos' taken to adjust the angle of the James Webb Space Telescope. You can see that the self-portrait shows 18 primary mirrors, one of which is shining brightly. According to NASA, only one of the hexagonal segments in the selfie that is angled to the bright star is shining.

According to NASA, the angle of the primary mirror 'is exactly the same as the simulation' at the time of writing the article. In addition, the angle adjustment is expected to be completed in about one month.