[ExI] Webb Telescope setup going great!

[Brent Allsop]

What about the star crosses on the image?
Isn't that all noise, from the optics and such?
Shouldn't it just be the star, and no cross light like that, to be a good
image, without any noise?
seems really bad to me, but then I'm clueless about such things.


On Wed, Mar 16, 2022 at 4:08 PM BillK via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

> The James Webb Space Telescope's main mirror is fully aligned and
> performing even better than it had been designed to do, NASA officials
> revealed in a news conference held virtually on Wednesday (March 16).
>
> <
> https://www.space.com/james-webb-space-telescope-better-than-expected-image
> >
>
> Quote:
> The image released on Wednesday shows a bright-shining amber-colored
> star emanating streams of light across the universe. Even more
> interesting than the star itself, however, is its background,
> revealing dozens of specks and dots — each a distant galaxy that was
> previously out of reach.
>
> These distant galaxies make Webb's first image a so-called deep field.
> Such photographs, focusing on small sections of the sky, aim to
> capture the most distant objects in the universe. Deep fields are a
> specialty of the Hubble Space Telescope, Webb's predecessor. Webb,
> however, is set to beat Hubble in its ability to peer into the depths.
>
> "There's no way that Webb can look for 2,000 seconds at any point in
> the sky, and not get an incredibly deep field," Rigby said. "This is
> going to be the future from now on. Wherever we look, it's a deep
> field. Without even really breaking a sweat, we're seeing back in time
> to galaxies that we're seeing the light as it looked billions of years
> ago."
> -----------
>
> First scientific images are expected to be released in June or July.
> NASA is keeping the celestial object that will become the first target
> of Webb's scientific exploration secret until then.
> -------------
>
> This telescope should be magnificent for astronomy - 100 times more
> sensitive than Hubble - unbelievable!
>
> BillK
>
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