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.

                              2024 September 25
    [2]A sunrise sky is shown over water and trees. The horizon is orange
   and the top of the image is deep blue. On the far right vertical bands
   are shown becoming progressively darker. In each band a comet appears,
     with the comet appearing increasingly near the top of the image on
   lighter bands. The main part of the image on the left is the lightest.
          Please see the explanation for more detailed information.

                   Comet A3 Through an Australian Sunrise
                 Image Credit & Copyright: [3]Lucy Yunxi Hu

   Explanation: Comet Tsuchinshan-ATLAS is now visible in the early
   morning sky. Diving into the inner [4]Solar System at an [5]odd angle,
   this large dirty iceberg will pass its closest to the [6]Sun -- between
   the orbits of [7]Mercury and [8]Venus -- in just two days. Long camera
   exposures are now capturing [9]C/2023 A3 (Tsuchinshan–ATLAS), sometimes
   abbreviated as just [10]A3, and its dust tail before and during
   sunrise. The featured image composite was taken four days ago and
   captured the comet as it rose above [11]Lake George, [12]NSW,
   [13]Australia. Vertical bands further left are [14]images of the comet
   as the rising Sun made the predawn sky increasingly bright and
   colorful. Just how bright the comet will become over the next month is
   currently unknown as it involves how much gas and dust the [15]comet's
   nucleus will expel. Optimistic [16]skywatchers are [17]hoping for a
   great show where [18]Tsuchinshan–ATLAS creates [19]dust and ion tails
   visible across Earth's sky and becomes known as the [20]Great [21]Comet
   of 2024.

             Survey: [22]Color Blindness and Astronomical Images
             Growing Gallery: [23]Comet Tsuchinsan-ATLAS in 2024
                       Tomorrow's picture: open space
     __________________________________________________________________

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    Authors & editors: [35]Robert Nemiroff ([36]MTU) & [37]Jerry Bonnell
                                 ([38]UMCP)
          NASA Official: Amber Straughn [39]Specific rights apply.
            [40]NASA Web Privacy, [41]Accessibility, [42]Notices;
                A service of: [43]ASD at [44]NASA / [45]GSFC,
                         [46]NASA Science Activation
                           & [47]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2409/Comet23A3_LucyHu_3000.jpg
   3. https://www.astrolucyhu.com/about-lucy
   4. https://science.nasa.gov/solar-system/
   5. https://theskylive.com/3dsolarsystem?obj=c2023a3
   6. https://apod.nasa.gov/apod/ap240728.html
   7. https://science.nasa.gov/mercury/
   8. https://apod.nasa.gov/apod/ap210317.html
   9. https://en.wikipedia.org/wiki/C/2023_A3_(Tsuchinshan–ATLAS)
  10. https://earthsky.org/space/comet-c-2023-a3-sep-oct-2024-tsuchinshan-atlas/
  11. https://youtu.be/VdjajukqIqQ
  12. https://en.wikipedia.org/wiki/New_South_Wales
  13. https://en.wikipedia.org/wiki/Australia
  14. https://spaceweathergallery2.com/index.php?title=comet
  15. https://apod.nasa.gov/apod/ap151118.html
  16. https://skyandtelescope.org/astronomy-news/update-comet-tsuchinshan-atlas-might-outshine-predictions/
  17. https://media.tenor.com/QbpJE3bOKB4AAAAM/crazykai-kaithedog.gif
  18. https://theskylive.com/c2023a3-info
  19. https://apod.nasa.gov/apod/ap210308.html
  20. https://apod.nasa.gov/apod/ap220408.html
  21. https://apod.nasa.gov/apod/ap131028.html
  22. https://www.surveymonkey.com/r/coloruniverse
  23. https://www.facebook.com/media/set/?vanity=APOD.Sky&set=a.516503464411569
  24. https://apod.nasa.gov/apod/ap240924.html
  25. https://apod.nasa.gov/apod/archivepix.html
  26. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  27. https://apod.nasa.gov/apod/lib/aptree.html
  28. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  29. https://apod.nasa.gov/apod/calendar/allyears.html
  30. https://apod.com/feed.rss
  31. https://apod.nasa.gov/apod/lib/edlinks.html
  32. https://apod.nasa.gov/apod/lib/about_apod.html
  33. https://asterisk.apod.com/discuss_apod.php?date=240925
  34. https://apod.nasa.gov/apod/ap240926.html
  35. http://www.phy.mtu.edu/faculty/Nemiroff.html
  36. http://www.phy.mtu.edu/
  37. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  38. http://www.astro.umd.edu/
  39. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  40. https://www.nasa.gov/about/highlights/HP_Privacy.html
  41. https://www.nasa.gov/general/accessibility/
  42. https://www.nasa.gov/privacy/
  43. https://astrophysics.gsfc.nasa.gov/
  44. https://www.nasa.gov/
  45. https://www.nasa.gov/centers/goddard/
  46. https://science.nasa.gov/learners
  47. http://www.mtu.edu/