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 August 20
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                            Three Perseid Nights
               Image Credit & [3]Copyright: [4]Balint Lengyel

   Explanation: [5]Frames from a camera that spent three moonless nights
   under the stars create this composite night skyscape. They were
   recorded during August 11-13 while planet Earth was sweeping [6]through
   the dusty trail of comet Swift-Tuttle. One long exposure, untracked for
   the foreground, and the many star tracking captures of Perseid shower
   meteors were taken from the village of Magyaregres, Hungary. Each
   aligned against the [7]background stars, the meteor trails all point
   back to the annual shower's radiant in the constellation Perseus
   heroically standing above this rural horizon. Of course the comet dust
   particles are traveling along trajectories parallel to each other. The
   radiant effect is due only to perspective, as the parallel tracks
   appear to [8]converge in the distance against the starry sky.

        Notable APOD Image Submissions: [9]Perseid Meteor Shower 2021
                      Tomorrow's picture: mutual events
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      [10]< | [11]Archive | [12]Submissions | [13]Index | [14]Search |
   [15]Calendar | [16]RSS | [17]Education | [18]About APOD | [19]Discuss |
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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]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2108/ThreeNightsPerseids3000.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.flickr.com/photos/146088520@N03/51383519755/
   5. https://www.flickr.com/photos/146088520@N03/51383519755/
   6. https://solarsystem.nasa.gov/asteroids-comets-and-meteors/meteors-and-meteorites/perseids/in-depth/
   7. https://apod.nasa.gov/apod/ap210819.html
   8. https://earthsky.org/upl/2010/12/railroad-tracks-converge-shutterstock-e1367591337388.jpg
   9. https://www.facebook.com/media/set/?vanity=APOD.Sky&set=a.3855532511217606
  10. https://apod.nasa.gov/apod/ap210819.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=210820
  20. https://apod.nasa.gov/apod/ap210821.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. http://www.mtu.edu/