﻿ 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 March 27 [2]Multi-colored aurora are seen above an unusual stone gateway, the first of several similar gateways seen in the distance. Please see the explanation for more detailed information. Aurora Over Arctic Henge Image Credit & Copyright: [3]Cari Letelier Explanation: Reports of powerful solar flares started a seven-hour quest north to capture modern monuments against an [4]aurora-filled sky. The peaks of iconic [5]Arctic Henge in [6]Raufarhöfn in northern [7]Iceland were already aligned with the stars: some are lined up toward the exact north from one side and toward exact south from the other. The featured image, taken after sunset late last month, looks directly south, but since the composite image covers so much of the sky, the north star [8]Polaris is actually visible at the very top of the frame. Also visible are familiar [9]constellations including the Great Bear ([10]Ursa Major) on the left, and the Hunter ([11]Orion) on the lower right. The quest was successful. The sky lit up [12]dramatically with bright and memorable auroras that shimmered with [13]amazing colors including red, pink, yellow, and green -- sometimes several at once. Tomorrow's picture: green flash flash flash __________________________________________________________________ [14]< | [15]Archive | [16]Submissions | [17]Index | [18]Search | [19]Calendar | [20]RSS | [21]Education | [22]About APOD | [23]Discuss | [24]> __________________________________________________________________ Authors & editors: [25]Robert Nemiroff ([26]MTU) & [27]Jerry Bonnell ([28]UMCP) NASA Official: Phillip Newman [29]Specific rights apply. [30]NASA Web Privacy Policy and Important Notices A service of: [31]ASD at [32]NASA / [33]GSFC, [34]NASA Science Activation & [35]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2303/ArcticHenge_Letelier_1765.jpg 3. https://cariletelier.com/about/ 4. https://spaceplace.nasa.gov/aurora/ 5. https://www.northiceland.is/en/place/arctic-henge 6. https://en.wikipedia.org/wiki/Raufarhöfn 7. https://en.wikipedia.org/wiki/Iceland 8. https://apod.nasa.gov/apod/ap210428.html 9. https://spaceplace.nasa.gov/constellations/ 10. https://en.wikipedia.org/wiki/Ursa_Major 11. https://en.wikipedia.org/wiki/Orion_(constellation)#History_and_mythology 12. https://media.istockphoto.com/id/1361306507/photo/funny-cat-looking-shocked-with-mouth-open.jpg?s=612x612&w=0&k=20&c=nZC2BlXoiC2tycIsiv_PvmUSwKhctikzVLy4Y3pgp10= 13. https://www.exploratorium.edu/learning_studio/auroras/difcolors.html 14. https://apod.nasa.gov/apod/ap230326.html 15. https://apod.nasa.gov/apod/archivepix.html 16. https://apod.nasa.gov/apod/lib/apsubmit2015.html 17. https://apod.nasa.gov/apod/lib/aptree.html 18. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 19. https://apod.nasa.gov/apod/calendar/allyears.html 20. https://apod.nasa.gov/apod.rss 21. https://apod.nasa.gov/apod/lib/edlinks.html 22. https://apod.nasa.gov/apod/lib/about_apod.html 23. https://asterisk.apod.com/discuss_apod.php?date=230327 24. https://apod.nasa.gov/apod/ap230328.html 25. http://www.phy.mtu.edu/faculty/Nemiroff.html 26. http://www.phy.mtu.edu/ 27. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 28. http://www.astro.umd.edu/ 29. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 30. https://www.nasa.gov/about/highlights/HP_Privacy.html 31. https://astrophysics.gsfc.nasa.gov/ 32. https://www.nasa.gov/ 33. https://www.nasa.gov/centers/goddard/ 34. https://science.nasa.gov/learners 35. http://www.mtu.edu/