Webb Space Telescope Takes Flight


Space Marshal
Sep 25, 2017
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Just adding to your excellent responses.
JWST took 12.5 hours to take the deep field image. https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-delivers-deepest-infrared-image-of-universe-yet
Also, note that JWST was not focused at 13.1 billion light years, but 4.6 billion light years. They were duplicating an image Hubble had taken ( conjecture: because it showcases the abilities of JWST.)

The main issue with Hubble is that it orbits the Earth, where JWST orbits the sun. Earth orbit means Hubble didn't have a long exposure time on a specific area of the universe during any particular session, so multiple sessions were required. On the other hand, JWST has a continuous view that could last for days, but it is orbiting the sun rather than Earth (and it is orbiting arouind the LaGrange point) so a particular view might need also to take years to get. But it can do a ton of other stuff in the mean time.

:: edit: there was a mess in the second last sentence... I was distracted by what turned out to be a shiny nut.
And this is why I fully expect it to make its own discoveries. And I understand the disappointment in JWST rehashing what has already been shown instead of bringing something shiny new to the table. But to this, i say it showcases that it confirms what Hubble saw and shows that its images are just as clear before going forward to see what has not been before.
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Space Marshal
Oct 8, 2016
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