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 18
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                       Most of Comet Tsuchinshan-ATLAS
                 Image Credit & [3]Copyright: [4]Adam Block

   Explanation: On October 14 it was hard to capture a full view of Comet
   C/2023 A3 [5]Tsuchinshan-ATLAS. Taken after the comet's closest
   approach to our fair planet, [6]this evening skyview almost does
   though. With two telephoto frames combined, the image stretches about
   26 degrees across the sky from top to bottom, looking west from Gates
   Pass, Tucson, Arizona. Comet watchers that night could even [7]identify
   globular star cluster M5 and the faint apparition of periodic comet 13P
   Olbers near the long the path of Tsuchinshan-ATLAS's whitish dust tail
   above the bright comet's coma. [8]Due to perspective as the Earth is
   crossing the comet's orbital plane, Tsuchinshan-ATLAS also has a
   pronounced antitail. The antitail is composed of dust previously
   released and fanning out away from the Sun along the comet's orbit,
   visible as a needle-like extension below the bright coma toward the
   rugged western horizon.

             Growing Gallery: [9]Comet Tsuchinshan-ATLAS in 2024
                      Tomorrow's picture: light-weekend
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    Authors & editors: [21]Robert Nemiroff ([22]MTU) & [23]Jerry Bonnell
                                 ([24]UMCP)
          NASA Official: Phillip Newman [25]Specific rights apply.
              [26]NASA Web Privacy Policy and Important Notices
                A service of: [27]ASD at [28]NASA / [29]GSFC,
                         [30]NASA Science Activation
                           & [31]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2410/a3_20241014_s.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.adamblockphotos.com/contact.html
   5. https://skyandtelescope.org/astronomy-news/comet-tsuchinshan-atlas-climbs-brightens-and-delights/
   6. https://www.adamblockphotos.com/c2023-a3-2024-10-14.html
   7. https://apod.nasa.gov/apod/image/2410/olbersM5detail.jpg
   8. https://apod.nasa.gov/apod/ap230127.html
   9. https://www.facebook.com/media/set/?vanity=APOD.Sky&set=a.516503464411569
  10. https://apod.nasa.gov/apod/ap241017.html
  11. https://apod.nasa.gov/apod/archivepix.html
  12. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  13. https://apod.nasa.gov/apod/lib/aptree.html
  14. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  15. https://apod.nasa.gov/apod/calendar/allyears.html
  16. https://apod.nasa.gov/apod.rss
  17. https://apod.nasa.gov/apod/lib/edlinks.html
  18. https://apod.nasa.gov/apod/lib/about_apod.html
  19. http://asterisk.apod.com/discuss_apod.php?date=241018
  20. https://apod.nasa.gov/apod/ap241019.html
  21. http://www.phy.mtu.edu/faculty/Nemiroff.html
  22. http://www.phy.mtu.edu/
  23. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  24. http://www.astro.umd.edu/
  25. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  26. https://www.nasa.gov/about/highlights/HP_Privacy.html
  27. https://astrophysics.gsfc.nasa.gov/
  28. https://www.nasa.gov/
  29. https://www.nasa.gov/centers/goddard/
  30. https://science.nasa.gov/learners
  31. http://www.mtu.edu/