¿ 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. 2020 July 28 [2]See Explanation. Clicking on the picture will download the highest resolution version available. NGC 6188: The Dragons of Ara Image Credit & Copyright: [3]Ariel L. Cappelletti Explanation: Dark shapes with bright edges winging their way through dusty NGC 6188 are tens of light-years long. The [4]emission nebula is found near the edge of an otherwise dark and large molecular cloud in the southern [5]constellation Ara, about 4,000 light-years away. [6]Born in that region only a few million years ago, the massive young [7]stars of the embedded Ara [8]OB1 association sculpt the fantastic shapes and power the nebular glow with stellar winds and intense ultraviolet radiation. The recent [9]star formation itself was likely triggered by winds and supernova explosions, from previous generations of massive stars, that swept up and compressed the molecular gas. The [10]featured image accumulated over 10 hours through a backyard telescope in [11]Córdoba, [12]Argentina and was false-colored using the [13]Hubble palette highlighting emission from sulfur, hydrogen, and oxygen atoms in red, green, and blue hues. The field of view spans about four full Moons, corresponding to about 150 light years at the estimated distance [14]of NGC 6188. Tomorrow's picture: open space __________________________________________________________________ [15]< | [16]Archive | [17]Submissions | [18]Index | [19]Search | [20]Calendar | [21]RSS | [22]Education | [23]About APOD | [24]Discuss | [25]> __________________________________________________________________ Authors & editors: [26]Robert Nemiroff ([27]MTU) & [28]Jerry Bonnell ([29]UMCP) NASA Official: Phillip Newman [30]Specific rights apply. [31]NASA Web Privacy Policy and Important Notices A service of: [32]ASD at [33]NASA / [34]GSFC & [35]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2007/N6188_Cappelletti_4508.jpg 3. https://www.astrobin.com/users/cappellettiariel/ 4. https://en.wikipedia.org/wiki/Emission_nebula 5. https://en.wikipedia.org/wiki/Ara_(constellation) 6. https://jwst.nasa.gov/birth.html 7. https://arxiv.org/abs/1105.3629 8. https://en.wikipedia.org/wiki/Stellar_association#OB_associatioss 9. https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve 10. https://www.astrobin.com/h2d9ol/0/ 11. https://www.youtube.com/watch?v=S01BbNL8qlE 12. https://en.wikipedia.org/wiki/Argentina 13. http://hubble.stsci.edu/gallery/behind_the_pictures/meaning_of_color/eagle.php 14. https://en.wikipedia.org/wiki/NGC_6188 15. https://apod.nasa.gov/apod/ap200727.html 16. https://apod.nasa.gov/apod/archivepix.html 17. https://apod.nasa.gov/apod/lib/apsubmit2015.html 18. https://apod.nasa.gov/apod/lib/aptree.html 19. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 20. https://apod.nasa.gov/apod/calendar/allyears.html 21. https://apod.nasa.gov/apod.rss 22. https://apod.nasa.gov/apod/lib/edlinks.html 23. https://apod.nasa.gov/apod/lib/about_apod.html 24. http://asterisk.apod.com/discuss_apod.php?date=200728 25. https://apod.nasa.gov/apod/ap200729.html 26. http://www.phy.mtu.edu/faculty/Nemiroff.html 27. http://www.phy.mtu.edu/ 28. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 29. http://www.astro.umd.edu/ 30. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 31. https://www.nasa.gov/about/highlights/HP_Privacy.html 32. https://astrophysics.gsfc.nasa.gov/ 33. https://www.nasa.gov/ 34. https://www.nasa.gov/centers/goddard/ 35. http://www.mtu.edu/