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 July 8
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                         Roots on a Rotating Planet
            Image Credit & [3]Copyright: [4]Marcella Giulia Pace

   Explanation: With roots on a [5]rotating planet, an old tree is
   [6]centered in this sequence of 137 exposures each 20 seconds long,
   recorded one night from northern Sicily. Digital camera and fisheye
   lens were fixed to a tripod to capture the dramatic timelapse, so the
   [7]stars trailed through the region's dark sky. Of course that makes it
   easy to spot the [8]planet's north celestial pole. The extension of
   Earth's [9]axis of rotation into space is toward the upper left, at the
   center of the concentric star trail arcs. The Milky Way is there too.
   The plane of our galaxy stretches across the wide field of view from
   north to east (left to right) creating a broader luminous band of
   [10]diffuse starlight.

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

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2207/StarTreels.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://greenflash.photo/about-me/
   5. https://greenflash.photo/greenflash-gallery/greenflash-gallery/portfolio/theatre-optique/
   6. https://apod.nasa.gov/apod/image/2207/MilkWayTree.jpg
   7. https://earthobservatory.nasa.gov/images/147990/stars-in-motion
   8. https://apod.nasa.gov/apod/ap191130.html
   9. https://apod.nasa.gov/apod/ap070519.html
  10. https://apod.nasa.gov/apod/ap220611.html
  11. https://apod.nasa.gov/apod/ap220707.html
  12. https://apod.nasa.gov/apod/archivepix.html
  13. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  14. https://apod.nasa.gov/apod/lib/aptree.html
  15. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  16. https://apod.nasa.gov/apod/calendar/allyears.html
  17. https://apod.nasa.gov/apod.rss
  18. https://apod.nasa.gov/apod/lib/edlinks.html
  19. https://apod.nasa.gov/apod/lib/about_apod.html
  20. http://asterisk.apod.com/discuss_apod.php?date=220708
  21. https://apod.nasa.gov/apod/ap220709.html
  22. http://www.phy.mtu.edu/faculty/Nemiroff.html
  23. http://www.phy.mtu.edu/
  24. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  25. http://www.astro.umd.edu/
  26. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  27. https://www.nasa.gov/about/highlights/HP_Privacy.html
  28. https://astrophysics.gsfc.nasa.gov/
  29. https://www.nasa.gov/
  30. https://www.nasa.gov/centers/goddard/
  31. http://www.mtu.edu/