Subj : Daily APOD Report
To   : All
From : Alan Ianson
Date : Mon Jul 18 2022 01:37:46

                        Astronomy Picture of the Day

    Discover the cosmos! Each day a different image or photograph of our
      fascinating universe is featured, along with a brief explanation
                    written by a professional astronomer.

                                2022 July 18

               Stephan's Quintet from Webb, Hubble, and Subaru
      Image Credit: Webb, Hubble, Subaru; NASA, ESA, CSA, NOAJ, STScI;
                   Processing & Copyright: Robert Gendler

   Explanation: OK, but why can't you combine images from Webb and Hubble?
   You can, and today's featured image shows one impressive result.
   Although the recently launched James Webb Space Telescope (Webb) has a
   larger mirror than Hubble, it specializes in infrared light and can't
   see blue -- only up to about orange. Conversely, the Hubble Space
   Telescope (Hubble) has a smaller mirror than Webb and can't see as far
   into the infrared as Webb, but can image not only blue light but even
   ultraviolet. Therefore, Webb and Hubble data can be combined to create
   images across a wider variety of colors. The featured image of four
   galaxies from Stephan's Quintet shows Webb images as red and also
   includes images taken by Japan's ground-based Subaru telescope in
   Hawaii. Because image data for Webb, Hubble, and Subaru are made freely
   available, anyone around the world can process it themselves, and even
   create intriguing and scientifically useful multi-observatory montages.

                  Stephan's Quintet from just: Webb, Hubble
                    Tomorrow's picture: half star cluster
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       Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
            NASA Official: Phillip Newman Specific rights apply.
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                             & Michigan Tech. U.

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