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.

                              2022 September 19
    [2]The featured image shows star trails over a lightning storm over a
       city. Please see the explanation for more detailed information.

                 Star Trails and Lightning over the Pyrenees
              Image Credit & Copyright: [3]Marc Sellés Llimós

   Explanation: The beauty in this image comes in layers. On the bottom
   layer is the picturesque village of [4]Manlleu in [5]Barcelona,
   [6]Spain. The [7]six-minute exposure makes car lights into streaks. The
   next layer is a mountain -- [8]Serra de Bellmunt -- of Europe's famous
   [9]Pyrenees. Next up is a [10]tremendous lightning storm emanating from
   a classically-shaped [11]anvil cloud. The long exposure allowed for the
   capture of many intricate [12]lightning bolts. Finally, at the top and
   furthest in the distance are [13]stars. Here, the multi-minute exposure
   made stars into [14]trails. The trailing effect is caused by the
   rotation of the Earth, and the [15]curvature of the trails indicates
   their distance from the [16]north spin pole of the Earth above. Taken
   after sunset in early June, the [17]lightning storm soon moved off. The
   stars, though, will continue to [18]circle the poll for as long as the
   [19]Earth spins -- surely billions of years [20]into the future.

                       Tomorrow's picture: star shells
     __________________________________________________________________

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    Authors & editors: [32]Robert Nemiroff ([33]MTU) & [34]Jerry Bonnell
                                 ([35]UMCP)
          NASA Official: Phillip Newman [36]Specific rights apply.
              [37]NASA Web Privacy Policy and Important Notices
                A service of: [38]ASD at [39]NASA / [40]GSFC,
                         [41]NASA Science Activation
                           & [42]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2209/LightningStarTrails_Llimos_5184.jpg
   3. https://www.instagram.com/marcselles/
   4. https://youtu.be/ZvpjCiuYS0M
   5. https://en.wikipedia.org/wiki/Province_of_Barcelona
   6. https://en.wikipedia.org/wiki/Spain
   7. https://www.instagram.com/p/CiN2Z5LqoXo/
   8. https://commons.wikimedia.org/wiki/File:La_serra_de_Bellmunt_des_de_Sant_Pere_de_Torelló_-P1300493.jpg
   9. https://en.wikipedia.org/wiki/Pyrenees
  10. https://www.beverlyhillsvets.com/blog/wp-content/uploads/2021/01/Beverly-Hills-MI-Scared-Cat.jpg
  11. https://en.wikipedia.org/wiki/Cumulonimbus_incus
  12. https://www.lightningmaps.org/
  13. https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve
  14. https://earthsky.org/astronomy-essentials/what-are-star-trails/
  15. https://apod.nasa.gov/apod/ap200407.html
  16. https://apod.nasa.gov/apod/ap220728.html
  17. https://scijinks.jpl.nasa.gov/lightning
  18. https://apod.nasa.gov/apod/ap190118.html
  19. https://apod.nasa.gov/apod/ap210922.html
  20. https://en.wikipedia.org/wiki/Timeline_of_the_far_future#Earth,_the_Solar_System,_and_the_universe
  21. https://apod.nasa.gov/apod/ap220918.html
  22. https://apod.nasa.gov/apod/archivepix.html
  23. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  24. https://apod.nasa.gov/apod/lib/aptree.html
  25. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  26. https://apod.nasa.gov/apod/calendar/allyears.html
  27. https://apod.nasa.gov/apod.rss
  28. https://apod.nasa.gov/apod/lib/edlinks.html
  29. https://apod.nasa.gov/apod/lib/about_apod.html
  30. http://asterisk.apod.com/discuss_apod.php?date=220919
  31. https://apod.nasa.gov/apod/ap220920.html
  32. http://www.phy.mtu.edu/faculty/Nemiroff.html
  33. http://www.phy.mtu.edu/
  34. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  35. http://www.astro.umd.edu/
  36. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  37. https://www.nasa.gov/about/highlights/HP_Privacy.html
  38. https://astrophysics.gsfc.nasa.gov/
  39. https://www.nasa.gov/
  40. https://www.nasa.gov/centers/goddard/
  41. https://science.nasa.gov/learners
  42. http://www.mtu.edu/