JWST Deploys its Secondary Mirror. It's a Real Telescope Now - Article by Nancy_A
Ladies and gentlemen, we have a telescope.
“We are 600,000 miles from Earth and we have a telescope,” said Bill Ochs, JWST program manager, speaking triumphantly to his team after the secondary mirror was deployed and then latched in place. This image shows the four different types of mirrors on the Webb telescope. From left to right are: a primary mirror segment, the secondary mirror, tertiary mirror and the fine steering mirror. The bottom right shows an artist’s conception of the Webb telescope optics with its 18 primary mirror segments. Credit: NASA/Ball Aerospace/Tinsley
, before the mission launched. Comparatively, Hammel said, if other components don’t deploy correctly, there would be potential work-arounds.], it will really wreck our mid-infrared observations, but maybe we can still do near-infrared. If the mirror doesn’t fully open and you only have the center section, you lose sensitivity, but it could still function.”Comparison of telescope mirror sizes. Credit: NASA.
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