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 February 23
    [2]The featured image shows a very deep image of the constellation of
    Orion in the background behind the Byrd - Green Bank Radio Telescope.
    the very center of our Milky Way Please see the explanation for more
                            detailed information.

                            Orion over Green Bank
                   Image Credit & Copyright: [3]Dave Green

   Explanation: What will the huge Green Bank Telescope discover tonight?
   Pictured, the [4]Robert C. Byrd Green Bank Telescope (GBT) on the lower
   right is the largest fully-pointable single-dish [5]radio telescope in
   the world. With a central dish larger than a football field, the [6]GBT
   is nestled in the hills of [7]West Virginia, [8]USA in a [9]radio quiet
   zone where the use of cell phones, WiFi emitters, and even microwave
   ovens are limited. The [10]GBT explores our universe not only during
   the night -- but during the day, too, since the daytime sky is
   typically dark in [11]radio waves. Taken in late January, the featured
   image was planned for months to get the setting [12]location of
   [13]Orion just right. The image is a composite of a foreground shot
   taken over a kilometer away from the [14]GBT, and a background shot
   built up of long exposures during the previous night. The deep
   background image of [15]Orion is [16]fitting because the GBT is famous
   for, among [17]many discoveries, mapping the [18]unusual magnetic field
   in the [19]Orion Molecular Cloud Complex.

                     Tomorrow's picture: colorful stars
     __________________________________________________________________

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     __________________________________________________________________

    Authors & editors: [31]Robert Nemiroff ([32]MTU) & [33]Jerry Bonnell
                                 ([34]UMCP)
          NASA Official: Phillip Newman [35]Specific rights apply.
              [36]NASA Web Privacy Policy and Important Notices
                A service of: [37]ASD at [38]NASA / [39]GSFC
                           & [40]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2202/GreenBankOrion_Green_1638.jpg
   3. https://www.instagram.com/dave_has_a_camera/
   4. https://greenbankobservatory.org/surprising-facts-about-the-green-bank-observatory/
   5. https://en.wikipedia.org/wiki/Radio_telescope
   6. https://en.wikipedia.org/wiki/Green_Bank_Telescope
   7. https://en.wikipedia.org/wiki/West_Virginia
   8. https://en.wikipedia.org/wiki/United_States
   9. https://en.wikipedia.org/wiki/United_States_National_Radio_Quiet_Zone
  10. https://youtu.be/NGGVy_M0zBY
  11. https://science.nasa.gov/ems/05_radiowaves
  12. https://goo.gl/maps/3nhYikjxpAwjVkpT8
  13. https://apod.nasa.gov/apod/ap200329.html
  14. https://youtu.be/7HVVNujXK2Q
  15. https://apod.nasa.gov/cgi-bin/apod/apod_search?tquery=orion
  16. https://cutecatsinhats-x7v0etsjgzjvirs3.netdna-ssl.com/wp-content/uploads/2019/10/Amyove-Funny-Cat-Dog-Costume-Uniform-Suit-Clothes-Puppy-Dressing-Up-Suit-Party-Cosplay-Clothes-0-1024x1024.jpg
  17. https://greenbankobservatory.org/about/history/
  18. https://www.berkeley.edu/news/media/releases/2006/01/12_helical.shtml
  19. https://en.wikipedia.org/wiki/Orion_Molecular_Cloud_Complex
  20. https://apod.nasa.gov/apod/ap220222.html
  21. https://apod.nasa.gov/apod/archivepix.html
  22. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  23. https://apod.nasa.gov/apod/lib/aptree.html
  24. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  25. https://apod.nasa.gov/apod/calendar/allyears.html
  26. https://apod.nasa.gov/apod.rss
  27. https://apod.nasa.gov/apod/lib/edlinks.html
  28. https://apod.nasa.gov/apod/lib/about_apod.html
  29. http://asterisk.apod.com/discuss_apod.php?date=220223
  30. https://apod.nasa.gov/apod/ap220224.html
  31. http://www.phy.mtu.edu/faculty/Nemiroff.html
  32. http://www.phy.mtu.edu/
  33. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  34. http://www.astro.umd.edu/
  35. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  36. https://www.nasa.gov/about/highlights/HP_Privacy.html
  37. https://astrophysics.gsfc.nasa.gov/
  38. https://www.nasa.gov/
  39. https://www.nasa.gov/centers/goddard/
  40. http://www.mtu.edu/