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.

                                2020 July 11
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                         The Tails of Comet NEOWISE
        Image Credit & [3]Copyright: [4]Miloslav Druckmuller ([5]Brno
                          University of Technology)

   Explanation: Comet NEOWISE (C/2020 F3) is [6]now sweeping through
   northern skies. Its [7]developing tails stretch some six degrees across
   this telescopic [8]field of view, recorded from Brno, Czech Republic
   before daybreak on July 10. Pushed out by the pressure of sunlight
   itself, the comet's broad, yellowish dust tail is easiest to see. But
   the image also captures a fainter, more bluish tail too, separate from
   the [9]reflective comet dust. The fainter tail is an ion tail, formed
   as ions from the cometary coma are dragged outward by magnetic fields
   in the solar wind and fluoresce in the sunlight. In this sharp portrait
   of our new visitor from the outer Solar System, the tails of comet
   NEOWISE are reminiscent of the even brighter tails of Hale Bopp, the
   [10]Great Comet of 1997.

    Comet NEOWISE from Around the Globe: [11]Notable Images Submitted to
                                    APOD
                    Tomorrow's picture: tales of Comet CG
     __________________________________________________________________

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    Authors & editors: [23]Robert Nemiroff ([24]MTU) & [25]Jerry Bonnell
                                 ([26]UMCP)
          NASA Official: Phillip Newman [27]Specific rights apply.
              [28]NASA Web Privacy Policy and Important Notices
                A service of: [29]ASD at [30]NASA / [31]GSFC
                           & [32]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2007/C2020_F3_NEOWISE_2020_07_10_druckmuller.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. http://www.zam.fme.vutbr.cz/~druck/Index.htm
   5. http://www.vutbr.cz/en/
   6. https://skyandtelescope.org/astronomy-news/comet-neowise-delights-at-dawn/
   7. http://spaceguard.rm.iasf.cnr.it/NScience/neo/neo-what/com-tail.htm
   8. https://apod.nasa.gov/apod/image/2007/Map_NEOWISE.jpg
   9. https://www.nasa.gov/feature/goddard/2020/nasa-s-parker-solar-probe-spies-newly-discovered-comet-neowise/
  10. https://apod.nasa.gov/apod/ap131013.html
  11. https://www.facebook.com/media/set?set=a.2741239435980258&type=3
  12. https://apod.nasa.gov/apod/ap200710.html
  13. https://apod.nasa.gov/apod/archivepix.html
  14. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  15. https://apod.nasa.gov/apod/lib/aptree.html
  16. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  17. https://apod.nasa.gov/apod/calendar/allyears.html
  18. https://apod.nasa.gov/apod.rss
  19. https://apod.nasa.gov/apod/lib/edlinks.html
  20. https://apod.nasa.gov/apod/lib/about_apod.html
  21. http://asterisk.apod.com/discuss_apod.php?date=200711
  22. https://apod.nasa.gov/apod/ap200712.html
  23. http://www.phy.mtu.edu/faculty/Nemiroff.html
  24. http://www.phy.mtu.edu/
  25. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  26. http://www.astro.umd.edu/
  27. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  28. https://www.nasa.gov/about/highlights/HP_Privacy.html
  29. https://astrophysics.gsfc.nasa.gov/
  30. https://www.nasa.gov/
  31. https://www.nasa.gov/centers/goddard/
  32. http://www.mtu.edu/