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The New Coffee Room

  1. TNCR
  2. General Discussion
  3. James Webb Space Telescope Launch Update

James Webb Space Telescope Launch Update

Scheduled Pinned Locked Moved General Discussion
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  • G Offline
    G Offline
    George K
    wrote on 12 Feb 2022, 22:27 last edited by George K 2 Dec 2022, 22:28
    #29

    "Let's align the mirrors."

    https://blogs.nasa.gov/webb/2022/02/11/photons-received-webb-sees-its-first-star-18-times/

    image.png

    The team’s challenge was twofold: confirm that NIRCam was ready to collect light from celestial objects, and then identify starlight from the same star in each of the 18 primary mirror segments. The result is an image mosaic of 18 randomly organized dots of starlight, the product of Webb’s unaligned mirror segments all reflecting light from the same star back at Webb’s secondary mirror and into NIRCam’s detectors.

    What looks like a simple image of blurry starlight now becomes the foundation to align and focus the telescope in order for Webb to deliver unprecedented views of the universe this summer. Over the next month or so, the team will gradually adjust the mirror segments until the 18 images become a single star.

    “The entire Webb team is ecstatic at how well the first steps of taking images and aligning the telescope are proceeding. We were so happy to see that light makes its way into NIRCam,” said Marcia Rieke, principal investigator for the NIRCam instrument and regents professor of astronomy, University of Arizona.

    Link to video

    "Now look here, you Baltic gas passer... " - Mik, 6/14/08

    The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

    1 Reply Last reply
    • T Offline
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      taiwan_girl
      wrote on 14 Feb 2022, 01:58 last edited by
      #30

      cool stuff!!

      1 Reply Last reply
      • C Offline
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        Copper
        wrote on 9 May 2022, 19:07 last edited by Copper 5 Sept 2022, 19:08
        #31

        Webb fully aligned! See the new test images

        https://earthsky.org/space/webb-telescope-aligned-new-test-images/

        https://www.space.com/james-webb-space-telescope-commissioning-update-may-2022

        1 Reply Last reply
        • C Offline
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          Copper
          wrote on 25 Jun 2022, 17:45 last edited by
          #32

          Countdown to first images

          Now 16 days 20 hours

          https://www.jwst.nasa.gov/content/webbLaunch/countdown.html

          1 Reply Last reply
          • C Offline
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            Copper
            wrote on 1 Jul 2022, 00:53 last edited by
            #33

            Now 11 days 13 hours

            https://arstechnica.com/science/2022/06/nasa-teases-extraordinary-images-captured-by-its-webb-telescope/

            NASA scientists say images from the Webb telescope nearly brought them to tears

            Deep field images of the universe, exoplanet atmospheres, and more to be unveiled.

            NASA said it plans to release several images beginning at 10:30 am ET (14:30 UTC) on July 12, the result of Webb's "first light" observations.

            1 Reply Last reply
            • G Offline
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              George K
              wrote on 1 Jul 2022, 00:56 last edited by
              #34

              I read a "teaser" interview with one of the NASA scientists. They said the images almost brought them to tears.

              "Now look here, you Baltic gas passer... " - Mik, 6/14/08

              The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

              8 1 Reply Last reply 1 Jul 2022, 13:05
              • G George K
                1 Jul 2022, 00:56

                I read a "teaser" interview with one of the NASA scientists. They said the images almost brought them to tears.

                8 Online
                8 Online
                89th
                wrote on 1 Jul 2022, 13:05 last edited by
                #35

                @George-K said in James Webb Space Telescope Launch Update:

                I read a "teaser" interview with one of the NASA scientists. They said the images almost brought them to tears.

                That's because they are staring at the sun. They should stop that.

                1 Reply Last reply
                • C Offline
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                  Copper
                  wrote on 6 Jul 2022, 16:12 last edited by Copper 7 Jun 2022, 16:14
                  #36

                  5 days 22 hours now

                  Tuesday July 12, 2022 10:30am EDT (14:30 GMT)

                  Find them here: https://www.nasa.gov/webbfirstimages

                  1 Reply Last reply
                  • G Offline
                    G Offline
                    George K
                    wrote on 8 Jul 2022, 17:58 last edited by
                    #37

                    "Now look here, you Baltic gas passer... " - Mik, 6/14/08

                    The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

                    1 Reply Last reply
                    • C Offline
                      C Offline
                      Copper
                      wrote on 8 Jul 2022, 18:58 last edited by
                      #38

                      Stephan’s Quintet (galaxy group, 290 million lyr)

                      As seen from Hubble

                      The comparison will be interesting

                      d54da221-9a4a-47eb-8a7a-e889ceab770f-image.png

                      https://hubblesite.org/contents/media/images/2009/25/2606-Image.html

                      KlausK 1 Reply Last reply 8 Jul 2022, 19:15
                      • C Copper
                        8 Jul 2022, 18:58

                        Stephan’s Quintet (galaxy group, 290 million lyr)

                        As seen from Hubble

                        The comparison will be interesting

                        d54da221-9a4a-47eb-8a7a-e889ceab770f-image.png

                        https://hubblesite.org/contents/media/images/2009/25/2606-Image.html

                        KlausK Offline
                        KlausK Offline
                        Klaus
                        wrote on 8 Jul 2022, 19:15 last edited by
                        #39

                        @Copper said in James Webb Space Telescope Launch Update:

                        The comparison will be interesting

                        I have no clue about astronomy, but I'd guess that in some ways the two aren't comparable since they deal, AFAIK, with very different parts of the light spectrum.

                        1 Reply Last reply
                        • C Offline
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                          Copper
                          wrote on 8 Jul 2022, 19:26 last edited by
                          #40

                          Link to video

                          Link to video

                          1 Reply Last reply
                          • 8 Online
                            8 Online
                            89th
                            wrote on 11 Jul 2022, 11:41 last edited by
                            #41

                            c720d280-a6e0-4bd7-8ba8-0ddc3ba68871-image.png

                            1 Reply Last reply
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                              Copper
                              wrote on 11 Jul 2022, 23:03 last edited by
                              #42

                              Mr. Biden gave us a sneak peak today

                              https://www.nasa.gov/webbfirstimages

                              This first image from NASA’s James Webb Space Telescope is the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail. Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground.

                              alt text

                              G T Catseye3C 4 Replies Last reply 11 Jul 2022, 23:12
                              • C Copper
                                11 Jul 2022, 23:03

                                Mr. Biden gave us a sneak peak today

                                https://www.nasa.gov/webbfirstimages

                                This first image from NASA’s James Webb Space Telescope is the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail. Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground.

                                alt text

                                G Offline
                                G Offline
                                George K
                                wrote on 11 Jul 2022, 23:12 last edited by
                                #43

                                @Copper said in James Webb Space Telescope Launch Update:

                                Mr. Biden gave us a sneak peak today

                                That's a lot of galaxies.

                                A whole lot.

                                "Now look here, you Baltic gas passer... " - Mik, 6/14/08

                                The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

                                LuFins DadL 1 Reply Last reply 14 Jul 2022, 04:05
                                • C Copper
                                  11 Jul 2022, 23:03

                                  Mr. Biden gave us a sneak peak today

                                  https://www.nasa.gov/webbfirstimages

                                  This first image from NASA’s James Webb Space Telescope is the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail. Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground.

                                  alt text

                                  T Offline
                                  T Offline
                                  taiwan_girl
                                  wrote on 12 Jul 2022, 00:28 last edited by
                                  #44

                                  @Copper said in James Webb Space Telescope Launch Update:

                                  Mr. Biden gave us a sneak peak today

                                  Wow amazing stuff!!

                                  1 Reply Last reply
                                  • markM Offline
                                    markM Offline
                                    mark
                                    wrote on 12 Jul 2022, 01:35 last edited by
                                    #45

                                    It's a giant leap forward in resolution and light gathering power.

                                    The level of detail in the small galaxies, and the blatantly obvious gravitational lensing, has me very impressed and excited about what we are going to discover with this telescope.

                                    I mean seeing friggin dust lanes and spiral arms, in galaxies that far away, is just incredible.

                                    markM 1 Reply Last reply 12 Jul 2022, 01:42
                                    • markM mark
                                      12 Jul 2022, 01:35

                                      It's a giant leap forward in resolution and light gathering power.

                                      The level of detail in the small galaxies, and the blatantly obvious gravitational lensing, has me very impressed and excited about what we are going to discover with this telescope.

                                      I mean seeing friggin dust lanes and spiral arms, in galaxies that far away, is just incredible.

                                      markM Offline
                                      markM Offline
                                      mark
                                      wrote on 12 Jul 2022, 01:42 last edited by
                                      #46

                                      It's a shame we have to put up with the diffraction spikes from the spider vanes. Hubble has the same issue.

                                      No practical way to get rid of them. Hauling a 21 foot diameter refactor into space would not work very well. lol

                                      1 Reply Last reply
                                      • C Copper
                                        11 Jul 2022, 23:03

                                        Mr. Biden gave us a sneak peak today

                                        https://www.nasa.gov/webbfirstimages

                                        This first image from NASA’s James Webb Space Telescope is the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail. Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground.

                                        alt text

                                        G Offline
                                        G Offline
                                        George K
                                        wrote on 12 Jul 2022, 01:49 last edited by George K 7 Dec 2022, 01:50
                                        #47

                                        @Copper said in James Webb Space Telescope Launch Update:

                                        Mr. Biden gave us a sneak peak today

                                        alt text

                                        Here's the same region as taken by Hubble.

                                        image.jpeg

                                        Side by side:

                                        Screen Shot 2022-07-11 at 8.49.46 PM.png

                                        "Now look here, you Baltic gas passer... " - Mik, 6/14/08

                                        The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

                                        1 Reply Last reply
                                        • C Offline
                                          C Offline
                                          Copper
                                          wrote on 12 Jul 2022, 02:29 last edited by Copper 7 Dec 2022, 02:39
                                          #48

                                          The picture on the right is better.

                                          Billions of dollars better?

                                          I can't say, because I'm sure I don't really understand how to compare them.

                                          They are close enough that I believe they are the same subject.

                                          EDIT: I found this comment, I haven't verified it

                                          The fact that hubble captured better looking deep fields is irrelevant, what matters is that this is the same piece of sky, Webb on the left in 12 hours of exposure, Hubble on the right in weeks of exposure!

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