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.

                                2023 July 24
    [2]A bright colorful streak crossed the image center, which wisps of
     colorful gas extending out. In the background is a dark starfield.
          Please see the explanation for more detailed information.

                  Chemicals Glow as a Meteor Disintegrates
              Image Credit & Copyright: [3]Michael Kleinburger

   Explanation: Meteors can be colorful. While the [4]human eye usually
   cannot discern many colors, cameras often can. [5]Pictured here is a
   [6]fireball, a disintegrating meteor that was not only one of the
   brightest the photographer has [7]ever seen, but colorful. The meteor
   was captured by chance in mid-July with a camera set up on [8]Hochkar
   Mountain in [9]Austria to photograph the central band of our [10]Milky
   Way galaxy. The [11]radiant grit, likely [12]cast off by a comet or
   asteroid long ago, had the misfortune to enter [13]Earth's atmosphere.
   [14]Colors in meteors usually originate from ionized chemical elements
   released as the [15]meteor disintegrates, with blue-green typically
   originating from [16]magnesium, [17]calcium radiating violet, and
   [18]nickel glowing green. Red, however, typically originates from
   energized [19]nitrogen and [20]oxygen in the Earth's atmosphere. This
   bright [21]meteoric [22]fireball was gone in a flash -- less than a
   second -- but it left a [23]wind-blown ionization trail that
   [24]remained visible for almost a minute.

                       Tomorrow's picture: X-ray eagle
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    Authors & editors: [36]Robert Nemiroff ([37]MTU) & [38]Jerry Bonnell
                                 ([39]UMCP)
          NASA Official: Phillip Newman [40]Specific rights apply.
              [41]NASA Web Privacy Policy and Important Notices
                A service of: [42]ASD at [43]NASA / [44]GSFC,
                         [45]NASA Science Activation
                           & [46]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2307/ChemicalFireball_Kleinburger_2774.jpg
   3. https://www.instagram.com/kleinburger.photography/
   4. https://medium.com/photography-secrets/whats-the-difference-between-a-camera-and-a-human-eye-a006a795b09f
   5. https://www.instagram.com/p/CuwPGuCouFR/
   6. https://apod.nasa.gov/apod/ap211220.html
   7. https://d.newsweek.com/en/full/1986767/shocked-cat.jpg
   8. https://youtu.be/six1fCLityA
   9. https://en.wikipedia.org/wiki/Austria
  10. https://solarsystem.nasa.gov/resources/285/the-milky-way-galaxy/
  11. https://upload.wikimedia.org/wikipedia/commons/6/63/Meteoroid_meteor_meteorite.gif
  12. https://apod.nasa.gov/apod/ap101123.html
  13. https://spaceplace.nasa.gov/atmosphere/en/
  14. https://www.amsmeteors.org/fireballs/faqf/#5
  15. https://solarsystem.nasa.gov/asteroids-comets-and-meteors/meteors-and-meteorites/in-depth/
  16. https://youtu.be/wqErrNvns4o
  17. https://periodic.lanl.gov/20.shtml
  18. https://en.wikipedia.org/wiki/Nickel
  19. https://youtu.be/0kMqRhJ_A0c
  20. https://youtu.be/qERdL8uHSgI
  21. https://www.amsmeteors.org/meteor-showers/meteor-faq/
  22. https://www.amsmeteors.org/fireballs/faqf/
  23. https://youtu.be/KJpQTL6V_WI
  24. https://apod.nasa.gov/apod/ap180817.html
  25. https://apod.nasa.gov/apod/ap230723.html
  26. https://apod.nasa.gov/apod/archivepix.html
  27. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  28. https://apod.nasa.gov/apod/lib/aptree.html
  29. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  30. https://apod.nasa.gov/apod/calendar/allyears.html
  31. https://apod.nasa.gov/apod.rss
  32. https://apod.nasa.gov/apod/lib/edlinks.html
  33. https://apod.nasa.gov/apod/lib/about_apod.html
  34. https://asterisk.apod.com/discuss_apod.php?date=230724
  35. https://apod.nasa.gov/apod/ap230725.html
  36. http://www.phy.mtu.edu/faculty/Nemiroff.html
  37. http://www.phy.mtu.edu/
  38. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  39. http://www.astro.umd.edu/
  40. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  41. https://www.nasa.gov/about/highlights/HP_Privacy.html
  42. https://astrophysics.gsfc.nasa.gov/
  43. https://www.nasa.gov/
  44. https://www.nasa.gov/centers/goddard/
  45. https://science.nasa.gov/learners
  46. http://www.mtu.edu/