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  • Webb telescope images

    From RonO@rokimoto557@gmail.com to talk-origins on Mon Sep 15 08:08:15 2025
    From Newsgroup: talk.origins

    https://abcnews.go.com/Technology/photos/otherworldly-images-nasas-james-webb-space-telescope-89463132

    ABC news has a series of images from the Webb telescope. With all the
    complex images I like the picture of Neptune. It was clean and
    simplistic. Are the 6 pointed starburst patterns eminating from bright objects an artifact of the compound lens and computer enhancement?

    Ron Okimoto

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  • From Ernest Major@{$to$}@meden.demon.co.uk to talk-origins on Mon Sep 15 14:54:02 2025
    From Newsgroup: talk.origins

    On 15/09/2025 14:08, RonO wrote:
    https://abcnews.go.com/Technology/photos/otherworldly-images-nasas- james-webb-space-telescope-89463132

    ABC news has a series of images from the Webb telescope.-a With all the complex images I like the picture of Neptune.-a It was clean and simplistic.-a Are the 6 pointed starburst patterns eminating from bright objects an artifact of the compound lens and computer enhancement?

    Ron Okimoto


    They are called diffraction spikes. The following explains their origin.

    https://www.sciencefocus.com/space/diffraction-spikes-jwst
    --
    alias Ernest Major

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  • From Ernest Major@{$to$}@meden.demon.co.uk to talk-origins on Mon Sep 15 15:05:58 2025
    From Newsgroup: talk.origins

    On 15/09/2025 14:54, Ernest Major wrote:
    On 15/09/2025 14:08, RonO wrote:
    https://abcnews.go.com/Technology/photos/otherworldly-images-nasas-
    james-webb-space-telescope-89463132

    ABC news has a series of images from the Webb telescope.-a With all the
    complex images I like the picture of Neptune.-a It was clean and
    simplistic.-a Are the 6 pointed starburst patterns eminating from
    bright objects an artifact of the compound lens and computer enhancement?

    Ron Okimoto


    They are called diffraction spikes. The following explains their origin.

    https://www.sciencefocus.com/space/diffraction-spikes-jwst


    They are not due to computer enhancement. In principle you could use
    computer enhancement to remove them. (Calculate what a bright point
    source looks like in the James Webb telescope, and subtract this from
    the image.)
    --
    alias Ernest Major

    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From RonO@rokimoto557@gmail.com to talk-origins on Mon Sep 15 10:00:32 2025
    From Newsgroup: talk.origins

    On 9/15/2025 9:05 AM, Ernest Major wrote:
    On 15/09/2025 14:54, Ernest Major wrote:
    On 15/09/2025 14:08, RonO wrote:
    https://abcnews.go.com/Technology/photos/otherworldly-images-nasas-
    james-webb-space-telescope-89463132

    ABC news has a series of images from the Webb telescope.-a With all
    the complex images I like the picture of Neptune.-a It was clean and
    simplistic.-a Are the 6 pointed starburst patterns eminating from
    bright objects an artifact of the compound lens and computer
    enhancement?

    Ron Okimoto


    They are called diffraction spikes. The following explains their origin.

    https://www.sciencefocus.com/space/diffraction-spikes-jwst


    They are not due to computer enhancement. In principle you could use computer enhancement to remove them. (Calculate what a bright point
    source looks like in the James Webb telescope, and subtract this from
    the image.)

    Thanks:

    They are the results of the supports for the secondary mirror and the hexagonal shape of the segmented compound mirror.

    I wonder if this sort of thing helps insects zero in on targets. It
    would depend on how many edges a compound eye had. Insects often have
    more than two eyes.

    Ron Okimoto

    --- Synchronet 3.21a-Linux NewsLink 1.2