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 November 19
   [2]A silhouette of the International Space Station (ISS) is pictured in
   front the top of the Sun, shown with great detail. An inset image shows
        where on the ISS the Dragon capsule is docked. Please see the
                 explanation for more detailed information.

                    Space Station, Solar Prominences, Sun
                 Image Credit & Copyright: [3]Mehmet Ergün

   Explanation: [4]That's no sunspot. It's the [5]International Space
   Station (ISS) caught passing in front of the Sun. [6]Sunspots,
   individually, have a dark central [7]umbra, a lighter surrounding
   [8]penumbra, and [9]no Dragon capsules attached. By contrast, the
   [10]ISS is a complex and multi-spired mechanism, one of the largest and
   most [11]complicated spacecraft ever created by [12]humanity. Also,
   [13]sunspots circle the [14]Sun, whereas the [15]ISS orbits the
   [16]Earth. Transiting the Sun is not very unusual for the [17]ISS,
   which orbits the Earth about every 90 minutes, but getting one's
   location, timing and equipment just right for a [18]great image is
   rare. The [19]featured picture combined three images all taken in 2021
   from the same location and at nearly the same time. One image --
   overexposed -- captured the faint [20]prominences seen across the top
   of the Sun, a second image -- underexposed -- captured the complex
   texture of the [21]Sun's chromosphere, while the third image -- the
   hardest to get -- captured the space station as it [22]shot across the
   Sun in a fraction of a second. [23]Close inspection of the space
   station's [24]silhouette even reveals a docked [25]Dragon Crew capsule.

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                       Tomorrow's picture: dark horse
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    Authors & editors: [42]Robert Nemiroff ([43]MTU) & [44]Jerry Bonnell
                                 ([45]UMCP)
          NASA Official: Phillip Newman [46]Specific rights apply.
              [47]NASA Web Privacy Policy and Important Notices
                A service of: [48]ASD at [49]NASA / [50]GSFC,
                         [51]NASA Science Activation
                           & [52]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2311/IssSun_Ergun_1752.jpg
   3. https://www.mehmet-erguen.com/ueber-mich
   4. https://youtu.be/8Nho44lGVV8
   5. https://apod.nasa.gov/apod/ap160418.html
   6. https://apod.nasa.gov/apod/ap051106.html
   7. https://starchild.gsfc.nasa.gov/Images/StarChild/questions/sunspot_dia.gif
   8. https://apod.nasa.gov/apod/ap060909.html
   9. https://www.petsworld.in/blog/wp-content/uploads/2017/01/Pic-2.jpeg
  10. https://www.nasa.gov/international-space-station/
  11. https://www.nytimes.com/2020/11/02/science/international-space-station-20-anniversary.html
  12. https://apod.nasa.gov/apod/ap190818.html
  13. https://apod.nasa.gov/apod/ap141022.html
  14. https://science.nasa.gov/sun/
  15. https://apod.nasa.gov/apod/ap161105.html
  16. https://apod.nasa.gov/apod/ap220206.html
  17. https://apod.nasa.gov/apod/ap050729.html
  18. https://apod.nasa.gov/apod/ap170828.html
  19. https://www.instagram.com/p/COGbC01guiS/
  20. https://apod.nasa.gov/apod/ap160306.html
  21. https://nso.edu/for-public/sun-science/chromosphere/
  22. https://apod.nasa.gov/apod/image/2105/Chromosphere.mp4
  23. https://buenavet.com/wp-content/uploads/2018/01/Cat_Fish_Bowl.jpg
  24. https://apod.nasa.gov/apod/ap140803.html
  25. https://en.wikipedia.org/wiki/SpaceX_Dragon_2
  26. https://www.instagram.com/apod.arabic/
  27. https://www.instagram.com/astronomypicturesdaily/
  28. https://www.instagram.com/avastarapod/
  29. https://www.instagram.com/apodbrasil/
  30. https://www.instagram.com/apod_taigi/
  31. https://apod.nasa.gov/apod/ap231118.html
  32. https://apod.nasa.gov/apod/archivepix.html
  33. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  34. https://apod.nasa.gov/apod/lib/aptree.html
  35. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  36. https://apod.nasa.gov/apod/calendar/allyears.html
  37. https://apod.com/feed.rss
  38. https://apod.nasa.gov/apod/lib/edlinks.html
  39. https://apod.nasa.gov/apod/lib/about_apod.html
  40. https://asterisk.apod.com/discuss_apod.php?date=231119
  41. https://apod.nasa.gov/apod/ap231120.html
  42. http://www.phy.mtu.edu/faculty/Nemiroff.html
  43. http://www.phy.mtu.edu/
  44. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  45. http://www.astro.umd.edu/
  46. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  47. https://www.nasa.gov/about/highlights/HP_Privacy.html
  48. https://astrophysics.gsfc.nasa.gov/
  49. https://www.nasa.gov/
  50. https://www.nasa.gov/centers/goddard/
  51. https://science.nasa.gov/learners
  52. http://www.mtu.edu/