Astronomy Picture of the Day

   [1]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
        [2]The featured image shows a grouping of four galaxies, some
       interacting, combining images from Webb, Hubble, and the Subaru
    telescope. Please see the explanation for more detailed information.

               Stephan's Quintet from Webb, Hubble, and Subaru
    Image Credit: [3]Webb, [4]Hubble, [5]Subaru; [6]NASA, [7]ESA, [8]CSA,
       [9]NOAJ, [10]STScI; Processing & Copyright: [11]Robert Gendler

   Explanation: OK, but why can't you combine images from Webb and Hubble?
   You can, and [12]today's featured image shows one impressive result.
   Although the recently launched [13]James Webb Space Telescope (Webb)
   has a [14]larger mirror than Hubble, it specializes in [15]infrared
   light and can't see blue -- only up to about orange. Conversely, the
   [16]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
   [17]blue light but even [18]ultraviolet. Therefore, [19]Webb and
   [20]Hubble data can be combined to create images across a wider variety
   of colors. The featured image of four [21]galaxies from [22]Stephan's
   Quintet shows Webb images as red and also includes images taken by
   [23]Japan's ground-based [24]Subaru telescope in [25]Hawaii. Because
   image data for [26]Webb, [27]Hubble, and [28]Subaru are made freely
   available, anyone around the world can process it themselves, and even
   create [29]intriguing and scientifically useful multi-observatory
   montages.

              Stephan's Quintet from just: [30]Webb, [31]Hubble
                    Tomorrow's picture: half star cluster
     __________________________________________________________________

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    Authors & editors: [43]Robert Nemiroff ([44]MTU) & [45]Jerry Bonnell
                                 ([46]UMCP)
          NASA Official: Phillip Newman [47]Specific rights apply.
              [48]NASA Web Privacy Policy and Important Notices
                A service of: [49]ASD at [50]NASA / [51]GSFC
                           & [52]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2207/Quintet_JwstHstEtcGendler_2413.jpg
   3. https://webb.nasa.gov/
   4. https://www.nasa.gov/mission_pages/hubble/main/index.html
   5. https://subarutelescope.org/en/about/
   6. https://www.nasa.gov/
   7. https://www.esa.int/
   8. https://www.asc-csa.gc.ca/eng/
   9. https://www.nao.ac.jp/
  10. https://www.stsci.edu/
  11. http://www.robgendlerastropics.com/Biography2.html
  12. http://www.robgendlerastropics.com/SQ-Webb-HST-Blend.html
  13. https://spaceplace.nasa.gov/james-webb-space-telescope/en/
  14. https://www.jwst.nasa.gov/content/about/comparisonWebbVsHubble.html
  15. https://science.nasa.gov/ems/07_infraredwaves
  16. https://www.nasa.gov/mission_pages/hubble/about
  17. https://science.nasa.gov/ems/09_visiblelight
  18. https://science.nasa.gov/ems/10_ultravioletwaves
  19. https://apod.nasa.gov/apod/ap211226.html
  20. https://apod.nasa.gov/apod/ap090525.html
  21. https://apod.nasa.gov/apod/ap211218.html
  22. https://en.wikipedia.org/wiki/Stephan's_Quintet
  23. https://en.wikipedia.org/wiki/Japan
  24. https://subarutelescope.org/en/about/
  25. https://en.wikipedia.org/wiki/Hawaii
  26. https://archive.stsci.edu/missions-and-data/jwst
  27. https://hla.stsci.edu/
  28. https://smoka.nao.ac.jp/
  29. http://mac.h-cdn.co/assets/cm/14/49/480x320/548332f4609e6_-_mc-internet-cat.jpg
  30. https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-sheds-light-on-galaxy-evolution-black-holes
  31. https://hubblesite.org/contents/media/images/2009/25/2606-Image.html
  32. https://apod.nasa.gov/apod/ap220717.html
  33. https://apod.nasa.gov/apod/archivepix.html
  34. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  35. https://apod.nasa.gov/apod/lib/aptree.html
  36. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  37. https://apod.nasa.gov/apod/calendar/allyears.html
  38. https://apod.nasa.gov/apod.rss
  39. https://apod.nasa.gov/apod/lib/edlinks.html
  40. https://apod.nasa.gov/apod/lib/about_apod.html
  41. http://asterisk.apod.com/discuss_apod.php?date=220718
  42. https://apod.nasa.gov/apod/ap220719.html
  43. http://www.phy.mtu.edu/faculty/Nemiroff.html
  44. http://www.phy.mtu.edu/
  45. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  46. http://www.astro.umd.edu/
  47. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  48. https://www.nasa.gov/about/highlights/HP_Privacy.html
  49. https://astrophysics.gsfc.nasa.gov/
  50. https://www.nasa.gov/
  51. https://www.nasa.gov/centers/goddard/
  52. http://www.mtu.edu/