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 October 4
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                              Comet at Moonrise
              Image Credit & [3]Copyright: [4]Gabriel Zaparolli

   Explanation: [5]Comet C/2023 A3 (Tsuchinshan–ATLAS) is growing brighter
   in planet Earth's sky. Fondly known as comet A3, this new visitor to
   the inner Solar System is traveling from the [6]distant Oort cloud. The
   comet reached perihelion, its closest approach to the Sun, on September
   27 and will reach perigee, its closest to our fair planet, on October
   12, by then becoming an evening sky apparition. [7]But comet A3 was an
   early morning riser on September 30 when this image was made. Its
   bright coma and already long tail share a pre-dawn skyscape from Praia
   Grande, Santa Catarina in southern Brazil with the waning crescent Moon
   just peeking above the eastern horizon. While the behaviour of comets
   is [8]notoriously unpredictable, Tsuchinshan–ATLAS could become a
   [9]comet visually rivaling C/2020 F3 (NEOWISE). Comet NEOWISE [10]wowed
   skygazers in the summer of 2020.

             Growing Gallery: [11]Comet Tsuchinsan-ATLAS in 2024
                       Tomorrow's picture: not a comet
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    Authors & editors: [23]Robert Nemiroff ([24]MTU) & [25]Jerry Bonnell
                                 ([26]UMCP)
          NASA Official: Phillip Newman [27]Specific rights apply.
              [28]NASA Web Privacy Policy and Important Notices
                A service of: [29]ASD at [30]NASA / [31]GSFC,
                         [32]NASA Science Activation
                           & [33]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2410/zaparolliA3.png
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.instagram.com/gabriel_zaparolli/?hl=en
   5. https://en.wikipedia.org/wiki/C/2023_A3_(Tsuchinshan–ATLAS)
   6. https://science.nasa.gov/solar-system/oort-cloud/
   7. https://earthsky.org/space/comet-c-2023-a3-sep-oct-2024-tsuchinshan-atlas/
   8. https://www.pinterest.com/pin/mittens-the-comet-cat-has-struck-earth--799740846315734544/
   9. https://www.scientificamerican.com/article/will-comet-tsuchinshan-atlas-be-the-brightest-of-the-year/
  10. https://apod.nasa.gov/apod/ap200723.html
  11. https://www.facebook.com/media/set/?vanity=APOD.Sky&set=a.516503464411569
  12. https://apod.nasa.gov/apod/ap241003.html
  13. https://apod.nasa.gov/apod/archivepix.html
  14. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  15. https://apod.nasa.gov/apod/lib/aptree.html
  16. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  17. https://apod.nasa.gov/apod/calendar/allyears.html
  18. https://apod.nasa.gov/apod.rss
  19. https://apod.nasa.gov/apod/lib/edlinks.html
  20. https://apod.nasa.gov/apod/lib/about_apod.html
  21. http://asterisk.apod.com/discuss_apod.php?date=241004
  22. https://apod.nasa.gov/apod/ap241005.html
  23. http://www.phy.mtu.edu/faculty/Nemiroff.html
  24. http://www.phy.mtu.edu/
  25. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  26. http://www.astro.umd.edu/
  27. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  28. https://www.nasa.gov/about/highlights/HP_Privacy.html
  29. https://astrophysics.gsfc.nasa.gov/
  30. https://www.nasa.gov/
  31. https://www.nasa.gov/centers/goddard/
  32. https://science.nasa.gov/learners
  33. http://www.mtu.edu/