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.

                                2021 June 26
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                              Pixels in the Sun
       Image Credit & [3]Copyright: [4]Wang Letian ([5]Eyes at Night)

   Explanation: These two panels, composed of video frames made with a
   safe solar telescope and [6]hydrogen alpha filter, show remarkably
   sharp details on [7]the solar disk and giant prominences along the
   Sun's edge on June 6 (top) and June 18. Taken from Beijing, China, they
   also show a transit of the International Space Station and China's new
   [8]Tiangong Space Station in silhouette against the bright Sun. The
   [9]International Space Station is near center in the bottom panel,
   crossing the solar disk left of bright active region AR2833 and below a
   large looping solar filament. The Chinese space station is below solar
   active region AR2827 and right of center in the top panel, seen as a
   smaller, combined "+" and "-" shape. The pictures of the [10]transiting
   orbital outposts were taken with the same equipment and at the same
   pixel scale, with the International Space Station some 492 kilometers
   away. The Chinese space station was over 400 kilometers [11]from the
   camera.

                   Tomorrow's picture: ring around aurora
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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/2106/ISS_CSSsolarTransit.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. http://www.luckwlt.com/About Me.html
   5. http://www.luckwlt.com/
   6. https://svs.gsfc.nasa.gov/4657
   7. https://www.nasa.gov/mission_pages/sdo/the-sun-now/index.html
   8. https://en.wikipedia.org/wiki/Tiangong_space_station
   9. https://www.nasa.gov/mission_pages/station/main/index.html
  10. https://transit-finder.com/help
  11. https://www.n2yo.com/satellite/?s=48274
  12. https://apod.nasa.gov/apod/ap210625.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=210626
  22. https://apod.nasa.gov/apod/ap210627.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/