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.

                                 2023 May 6
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                            Twilight in a Flower
              Image Credit & [3]Copyright: [4]Dario Giannobile

   Explanation: [5]Transformed into the petals of a flower, 16 exposures
   show the passage of day into night in this [6]creative timelapse
   skyscape. Start at the top and move counterclockwise to follow
   consecutive moments as the twilight sky turns an ever darker blue and
   night blossoms. Each exposure was recorded on the [7]evening of April
   22, calculated to maintain a consistent balance of light and color.
   Close to the western horizon on that date, a crescent Moon and Venus
   are the two brightest [8]celestial beacons. Petal to petal the pair
   spiral closer to the flower's center. In silhouette around the center
   of the twilight flower are Sicily's megalithic rocks of [9]Argimusco.

                        Tomorrow's picture: the helix
     __________________________________________________________________

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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/2305/TwilightFlower.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.dariogiannobile.com/
   5. https://apod.nasa.gov/apod/ap220422.html
   6. https://www.dariogiannobile.com/p605599922/h6a198f02#h6a198f02
   7. https://www.dariogiannobile.com/night_sky_galleries/nightscape/h6fec4a2d#h6fec4a2d
   8. https://solarsystem.nasa.gov/skywatching/whats-up/
   9. https://en.wikipedia.org/wiki/Argimusco
  10. https://apod.nasa.gov/apod/ap230505.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=230506
  20. https://apod.nasa.gov/apod/ap230507.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/