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.

                                2021 July 31
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                             Remembering NEOWISE
   Image Credit & [3]Copyright: [4]Petr Horalek / [5]Institute of Physics
                                  in Opava

   Explanation: It was just last July. If you could see the stars of
   [6]the Big Dipper, you could find Comet NEOWISE in your evening sky.
   [7]After sunset denizens of the north could look for the naked-eye
   comet below the bowl of that famous celestial kitchen utensil and above
   the northwestern horizon. The comet looked like a fuzzy 'star' with a
   tail, though probably not so long a tail as in this [8]memorable
   skyview recorded from the Czech Republic on July 23th, 2020, near the
   comet's closest approach to planet Earth. Photographs of [9]C/2020 F3
   (NEOWISE) often did show the comet's broad dust tail and fainter but
   separate bluish ion tail extending [10]farther than the eye could
   follow. Skygazers around the world were [11]delighted to witness Comet
   NEOWISE, surprise visitor from the outer Solar System.

   Notable Comet NEOWISE Images 2020: July [12]31 [13]30, [14]29, [15]28,
                       [16]27, [17]26, [18]25, [19]24
                    Tomorrow's picture: better than Pluto
     __________________________________________________________________

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    Authors & editors: [31]Robert Nemiroff ([32]MTU) & [33]Jerry Bonnell
                                 ([34]UMCP)
          NASA Official: Phillip Newman [35]Specific rights apply.
              [36]NASA Web Privacy Policy and Important Notices
                A service of: [37]ASD at [38]NASA / [39]GSFC
                           & [40]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2107/2020_07_23_NEOWISE_Klondik_Combine1_Samostatne_1500px.png
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. http://www.astronom.cz/horalek/?page_id=20
   5. https://www.slu.cz/phys/en/
   6. https://apod.nasa.gov/apod/ap190815.html
   7. https://apod.nasa.gov/apod/ap200718.html
   8. https://www.petrhoralek.com/?p=6546
   9. https://en.wikipedia.org/wiki/Comet_NEOWISE
  10. https://apod.nasa.gov/apod/ap200716.html
  11. https://www.nasa.gov/feature/how-to-see-comet-neowise
  12. https://www.facebook.com/media/set/?set=a.2818635991573935&type=3
  13. https://www.facebook.com/media/set/?set=a.2814764565294411&type=3
  14. https://www.facebook.com/media/set/?set=a.2811464625624405&type=3
  15. https://www.facebook.com/media/set/?set=a.2808659892571545&type=3
  16. https://www.facebook.com/media/set/?set=a.2806003322837202&type=3
  17. https://www.facebook.com/media/set/?set=a.2803425026428365&type=3
  18. https://www.facebook.com/media/set/?set=a.2800436196727248&type=3
  19. https://www.facebook.com/media/set/?set=a.2797140183723516&type=3
  20. https://apod.nasa.gov/apod/ap210730.html
  21. https://apod.nasa.gov/apod/archivepix.html
  22. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  23. https://apod.nasa.gov/apod/lib/aptree.html
  24. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  25. https://apod.nasa.gov/apod/calendar/allyears.html
  26. https://apod.nasa.gov/apod.rss
  27. https://apod.nasa.gov/apod/lib/edlinks.html
  28. https://apod.nasa.gov/apod/lib/about_apod.html
  29. http://asterisk.apod.com/discuss_apod.php?date=200731
  30. https://apod.nasa.gov/apod/ap210801.html
  31. http://www.phy.mtu.edu/faculty/Nemiroff.html
  32. http://www.phy.mtu.edu/
  33. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  34. http://www.astro.umd.edu/
  35. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  36. https://www.nasa.gov/about/highlights/HP_Privacy.html
  37. https://astrophysics.gsfc.nasa.gov/
  38. https://www.nasa.gov/
  39. https://www.nasa.gov/centers/goddard/
  40. http://www.mtu.edu/