Astronomy Picture of the Day

                         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 September 11
                                      [2]
                        Milky Way over Troll's Tongue
    Image Credit & Copyright: Ruslan Merzlyakov [3] (RMS Photography [4] )

Explanation: You have to take a long hike [5]  to see the Troll's Tongue --
ten hours over rocky terrain. And in this case, it took three trips to capture
the landform [6]  below a clear night sky. Trolltunga [7]  itself is a
picturesque rock protrusion [8] extending about 700 meters over mountainous
cliffs near Lake Ringedalsvatnet [9]  in Norway [10] . The overhang [11]  is
made of billion-year-old Precambrian [12] bedrock [13]  that was carved out by
glaciers during an ice-age about 10,000 years ago. The featured picture [14]
is a composite of two exposures, a 15-second image of the foreground [15]
Earth [16] followed 40 minutes later by an 87-second exposure of the
background [17]  sky. Thousands of discernable stars dot the backdrop
starscape [18] in addition to billions of unresolved stars in the nearly
vertical band of our Milky Way Galaxy [19] .

                    Tomorrow's picture: lunar rock & roll

-------------------------------------------------------------------------------
< [20] | Archive [21] | Submissions [22] | Index [23] | Search [24] | Calendar
  [25] | RSS [26] | Education [27] | About APOD [28] | Discuss [29] | > [30]
-------------------------------------------------------------------------------

    Authors & editors: Robert Nemiroff [31] (MTU [32] ) & Jerry Bonnell [33]
                                  (UMCP [34] )
          NASA Official:  Phillip Newman Specific rights apply [35] .
              NASA Web Privacy Policy and Important Notices [36]
              A service of: ASD [37]  at NASA [38]  / GSFC [39]
                           & Michigan Tech. U. [40]
----------
Site notes:
  [1] archivepix.html
  [2] image/1809/MilkyWayTongue_Merzlyakov_1790.jpg
  [3] https://www.facebook.com/rmerzlyakov
  [4] https://www.facebook.com/rmsphotography95/
  [5] https://www.youtube.com/watch?v=m7koGDPcnq4
  [6] https://en.wikipedia.org/wiki/Trolltunga#/med...
  [7] https://en.wikipedia.org/wiki/Trolltunga
  [8] https://www.youtube.com/watch?v=LuOtzeQuGW8
  [9] https://www.youtube.com/watch?v=g_NkzNT2cbw
  [10] https://en.wikipedia.org/wiki/Norway
  [11] https://en.wikipedia.org/wiki/Trolltunga#/med...
  [12] https://en.wikipedia.org/wiki/Precambrian
  [13] https://en.wikipedia.org/wiki/Bedrock
  [14]
https://www.facebook.com/rmsphotography95/pho...
1398249380277895/?type=3&theater
  [15] image/1809/MilkyWayTongueForeground.jpg
  [16] https://solarsystem.nasa.gov/planets/earth/ov...
  [17] image/1809/MilkyWayTongueBackground.jpg
  [18] ap140905.html
  [19] ap170328.html
  [20] ap180910.html
  [21] archivepix.html
  [22] lib/apsubmit2015.html
  [23] lib/aptree.html
  [24] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apo...
  [25] calendar/allyears.html
  [26] /apod.rss
  [27] lib/edlinks.html
  [28] lib/about_apod.html
  [29] http://asterisk.apod.com/discuss_apod.php?dat...
  [30] ap180912.html
  [31] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [32] http://www.phy.mtu.edu/
  [33] https://antwrp.gsfc.nasa.gov/htmltest/jbonnel...
  [34] http://www.astro.umd.edu/
  [35] lib/about_apod.html#srapply
  [36] https://www.nasa.gov/about/highlights/HP_Priv...
  [37] https://astrophysics.gsfc.nasa.gov/
  [38] https://www.nasa.gov/
  [39] https://www.nasa.gov/centers/goddard/
  [40] http://www.mtu.edu/

--- Mystic BBS v1.12 A39 (Windows/32)
 * Origin: FIDONet - The Positronium Repository (1:393/68)