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 November 16 [2]See Explanation. Clicking on the picture will download the highest resolution version available. In the Arms of NGC 1097 Image Credit & [3]Copyright: [4]Mike Selby, [5]Mark Hanson Explanation: Spiral galaxy [6]NGC 1097 shines in southern skies, about 45 million light-years away in the heated constellation [7]Fornax. Its blue spiral arms are mottled with pinkish star forming regions in [8]this colorful galaxy portrait. They seem to have wrapped around a small companion galaxy above and right of center, about 40,000 light-years from the spiral's luminous core. That's not NGC 1097's only peculiar feature, though. This very deep exposure hints of faint, mysterious jets, seen to extend well beyond the bluish arms. In fact, four faint jets are ultimately [9]recognized in optical images of NGC 1097. [10]The jets trace an X centered on the galaxy's nucleus, but probably don't originate there. Instead, they could be [11]fossil star streams, trails [12]left over from the capture and disruption of a much smaller galaxy in the large spiral's ancient past. [13]A Seyfert galaxy, NGC 1097's nucleus also harbors a [14]supermassive black hole. Tomorrow's picture: pixels in 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]NASA Science Activation & [36]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2211/NGC-1097-LRGB_Ha-rev-12-2022.jpg 3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 4. https://www.facebook.com/masterdarksastro/ 5. https://www.hansonastronomy.com/ 6. https://www.nasa.gov/image-feature/goddard/2002/hubble-sees-the-eye-of-a-colorful-galaxy 7. https://earthsky.org/constellations/fornax-the-furnace-galaxy-hubble-ultra-deep-field/ 8. https://www.facebook.com/photo.php?fbid=439299734846844 9. https://apod.nasa.gov/apod/image/0911/NGC1097invert_gendlerJets.jpg 10. http://adsabs.harvard.edu/abs/2003ApJ...585..281H 11. https://apod.nasa.gov/apod/ap080619.html 12. http://arxiv.org/abs/1006.1353 13. http://en.wikipedia.org/wiki/Seyfert_galaxy 14. https://apod.nasa.gov/apod/ap090727.html 15. https://apod.nasa.gov/apod/ap221115.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=221116 25. https://apod.nasa.gov/apod/ap221117.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. https://science.nasa.gov/learners 36. http://www.mtu.edu/