﻿ 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 __________________________________________________________________ [20]< | [21]Archive | [22]Submissions | [23]Index | [24]Search | [25]Calendar | [26]RSS | [27]Education | [28]About APOD | [29]Discuss | [30]> __________________________________________________________________ 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/