             APOD: 2018 April 24 - Play Saturns Rings Like a Harp

                         Astronomy Picture of the Day

    Discover the cosmos! [1] Each day a different image or photograph of our
 fascinating universe is featured, along with a brief explanation written by a
                           professional astronomer.

                                2018 April 24
                       Play Saturn's Rings Like a Harp
      Image Credit: NASA [2] , JPL-Caltech [3] , SSI [4] , Cassini [5] ;
                         Sonification: Matt Russo [6]

Explanation: Sure, you've seen Saturn's rings -- but have you ever  heard
them? Well then please take this opportunity to play Saturn [7] 's rings like
a harp [8] . In the featured sonification [9] , increasing brighter regions of
Saturn's central B-ring [10]  play as increasingly higher pitch [11] ed notes.
With a computer browser, click anywhere on the image to begin, and pluck
consecutive strings by sliding the spacecraft icon's magnetometer boom [12]
across the strings. Both manual and automatic modes [13]  are possible. The
featured natural-color image [14]  was taken by the late [15] Cassini
spacecraft [16]  in 2017 July as it grazed [17]  Saturn's rings and took the
highest-resolution ring images ever. The reason why the mostly water-ice rings
[18]  have a tan hue -- instead of white [19]  -- is currently a topic of
research. Played in minor [20]  harmony, a different false-color version [21]
of the same image appears where regions with a greater abundance of water ice
appears more red.

                  Tomorrow's picture: Hubble's Jupiter [22]

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    Authors & editors: Robert Nemiroff [34] (MTU [35] ) & Jerry Bonnell [36]
                                  (UMCP [37] )
          NASA Official:  Phillip Newman Specific rights apply [38] .
              NASA Web Privacy Policy and Important Notices [39]
              A service of: ASD [40]  at NASA [41]  / GSFC [42]
                           & Michigan Tech. U. [43]
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Site notes:
  [1] archivepix.html
  [2] https://www.nasa.gov/
  [3] https://www.jpl.nasa.gov/
  [4] http://www.spacescience.org/
  [5] https://www.nasa.gov/mission_pages/cassini/main/index.html
  [6] https://www.astromattrusso.com/
  [7] https://solarsystem.nasa.gov/planets/saturn/overview/
  [8] https://en.wikipedia.org/wiki/Harp
  [9] http://www.system-sounds.com/saturn-harp/
  [10] ap161124.html
  [11] https://en.wikipedia.org/wiki/Pitch_(music)
  [12] https://www.esa.int/esapub/bulletin/bullet92/images/b92kohf4.gif
  [13] https://www.youtube.com/watch?v=_fwxBSW3MzU
  [14] https://photojournal.jpl.nasa.gov/catalog/PIA21628
  [15] https://saturn.jpl.nasa.gov/mission/grand-finale/overview/
  [16] https://saturn.jpl.nasa.gov/the-journey/the-spacecraft/
  [17] https://www.nasa.gov/feature/cassini-finds-the-big-empty-close-to-saturn
  [18] https://spaceplace.nasa.gov/saturn-rings/en/
  [19] ap091208.html
  [20]
https://www.studybass.com/lessons/bass-scales/
the-difference-between-major-and-minor/
  [21] https://photojournal.jpl.nasa.gov/catalog/PIA21628
  [22] ap180425.html
  [23] ap180423.html
  [24] archivepix.html
  [25] lib/apsubmit2015.html
  [26] lib/aptree.html
  [27] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [28] calendar/allyears.html
  [29] /apod.rss
  [30] lib/edlinks.html
  [31] lib/about_apod.html
  [32] http://asterisk.apod.com/discuss_apod.php?date=180424
  [33] ap180425.html
  [34] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [35] http://www.phy.mtu.edu/
  [36] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [37] http://www.astro.umd.edu/
  [38] lib/about_apod.html#srapply
  [39] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [40] https://astrophysics.gsfc.nasa.gov/
  [41] https://www.nasa.gov/
  [42] https://www.nasa.gov/centers/goddard/
  [43] http://www.mtu.edu/
