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 October 28
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                         Seven Years of Halley Dust
   Image Credit & [3]Copyright: [4]Petr Horalek / [5]Institute of Physics
                                  in Opava

   Explanation: History's first known periodic [6]comet Halley (1P/Halley)
   returns to the inner Solar System every 75 years or so. The famous
   comet made its last appearance to the naked-eye in 1986. But dusty
   debris from Comet Halley can be seen raining through planet Earth's
   skies twice a year during two annual meteor showers, the [7]Eta
   Aquarids in May and the [8]Orionids in October. Including meteors near
   the shower maximum on October 21, this composite view [9]compiles
   Orionid meteors captured from years 2015 through 2022. About 47 bright
   meteors are registered in the panoramic night skyscape. Against a
   starry background extending along the Milky Way, the Orionid meteors
   all seem to radiate [10]from a point just north of Betelgeuse in the
   familiar constellation of the Hunter. In the foreground are mountains
   in eastern Slovakia near the city of Presov.

                Tomorrow's picture: a dark and spooky nebula
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    Authors & editors: [22]Robert Nemiroff ([23]MTU) & [24]Jerry Bonnell
                                 ([25]UMCP)
          NASA Official: Phillip Newman [26]Specific rights apply.
              [27]NASA Web Privacy Policy and Important Notices
                A service of: [28]ASD at [29]NASA / [30]GSFC,
                         [31]NASA Science Activation
                           & [32]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2210/2016-2022_Orionids_Pano_1500px.png
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.petrhoralek.com/#about-1
   5. https://www.slu.cz/phys/en/
   6. https://solarsystem.nasa.gov/asteroids-comets-and-meteors/comets/1p-halley/in-depth/
   7. https://solarsystem.nasa.gov/asteroids-comets-and-meteors/meteors-and-meteorites/eta-aquarids/in-depth/
   8. https://solarsystem.nasa.gov/asteroids-comets-and-meteors/meteors-and-meteorites/orionids/in-depth/
   9. https://www.petrhoralek.com/?p=23223
  10. https://apod.nasa.gov/apod/ap171030.html
  11. https://apod.nasa.gov/apod/ap221027.html
  12. https://apod.nasa.gov/apod/archivepix.html
  13. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  14. https://apod.nasa.gov/apod/lib/aptree.html
  15. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  16. https://apod.nasa.gov/apod/calendar/allyears.html
  17. https://apod.nasa.gov/apod.rss
  18. https://apod.nasa.gov/apod/lib/edlinks.html
  19. https://apod.nasa.gov/apod/lib/about_apod.html
  20. http://asterisk.apod.com/discuss_apod.php?date=221028
  21. https://apod.nasa.gov/apod/ap221029.html
  22. http://www.phy.mtu.edu/faculty/Nemiroff.html
  23. http://www.phy.mtu.edu/
  24. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  25. http://www.astro.umd.edu/
  26. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  27. https://www.nasa.gov/about/highlights/HP_Privacy.html
  28. https://astrophysics.gsfc.nasa.gov/
  29. https://www.nasa.gov/
  30. https://www.nasa.gov/centers/goddard/
  31. https://science.nasa.gov/learners
  32. http://www.mtu.edu/