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 April 29
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                            Portrait of NGC 3628
   Image Credit & [3]Copyright: [4]Wilhelm Michael Kasakow, Olaf Guillaume

   Explanation: Sharp telescopic views of [5]NGC 3628 show a puffy
   galactic disk divided by dark dust lanes. Of course, [6]this portrait
   of the magnificent, edge-on spiral galaxy puts some astronomers [7]in
   mind of its popular moniker, the Hamburger Galaxy. It also reveals a
   small galaxy nearby (below), likely a satellite of NGC 3628, and a very
   faint but extensive [8]tidal tail. The drawn out tail stretches for
   about 300,000 light-years, even beyond the upper left edge of the
   frame. NGC 3628 shares its neighborhood in the local universe with two
   other large spirals [9]M65 and [10]M66 in a grouping otherwise known as
   [11]the Leo Triplet. Gravitational interactions with its [12]cosmic
   neighbors are likely responsible for creating the tidal tail, as well
   as the extended flare and warp of this spiral's disk. [13]The
   tantalizing island universe itself is about 100,000 light-years across
   and 35 million light-years away in the northern springtime
   constellation Leo.

                 Tomorrow's picture: diffraction attraction
     __________________________________________________________________

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    Authors & editors: [25]Robert Nemiroff ([26]MTU) & [27]Jerry Bonnell
                                 ([28]UMCP)
          NASA Official: Phillip Newman [29]Specific rights apply.
              [30]NASA Web Privacy Policy and Important Notices
                A service of: [31]ASD at [32]NASA / [33]GSFC
                           & [34]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2204/NGC3628-crop.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. mailto: info [at]hk[-]bildhauer[dot]de
   5. http://messier.seds.org/xtra/ngc/n3628.html
   6. http://www.stein-exclusiv.de/NGC3628-crop.jpg
   7. https://apod.nasa.gov/apod/ap020807.html
   8. https://apod.nasa.gov/apod/ap121108.html
   9. https://apod.nasa.gov/apod/ap070601.html
  10. https://apod.nasa.gov/apod/ap101113.html
  11. https://apod.nasa.gov/apod/ap110803.html
  12. https://hubblesite.org/contents/media/images/2002/11/1181-Image.html?news=true
  13. https://www.youtube.com/watch?v=c8AKo9sS45E
  14. https://apod.nasa.gov/apod/ap220428.html
  15. https://apod.nasa.gov/apod/archivepix.html
  16. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  17. https://apod.nasa.gov/apod/lib/aptree.html
  18. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  19. https://apod.nasa.gov/apod/calendar/allyears.html
  20. https://apod.nasa.gov/apod.rss
  21. https://apod.nasa.gov/apod/lib/edlinks.html
  22. https://apod.nasa.gov/apod/lib/about_apod.html
  23. http://asterisk.apod.com/discuss_apod.php?date=220429
  24. https://apod.nasa.gov/apod/ap220430.html
  25. http://www.phy.mtu.edu/faculty/Nemiroff.html
  26. http://www.phy.mtu.edu/
  27. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  28. http://www.astro.umd.edu/
  29. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  30. https://www.nasa.gov/about/highlights/HP_Privacy.html
  31. https://astrophysics.gsfc.nasa.gov/
  32. https://www.nasa.gov/
  33. https://www.nasa.gov/centers/goddard/
  34. http://www.mtu.edu/