¿ 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 October 5 [2]See Explanation. Clicking on the picture will download the highest resolution version available. NGC 5643: Nearby Spiral Galaxy from Hubble Image Credit: [3]ESA/[4]Hubble & [5]NASA, [6]A. Riess et al.; Acknowledgement: [7]Mahdi Zamani Explanation: What's happening at the center of spiral galaxy NGC 5643? A swirling disk of stars and gas, [8]NGC 5643's appearance is dominated by blue spiral arms and brown [9]dust, as shown in the [10]featured image taken by the [11]Hubble Space Telescope. The core of this active galaxy glows brightly in [12]radio waves and [13]X-rays where twin jets have been found. An unusual central glow makes [14]M106 one of the closest examples of the [15]Seyfert class of galaxies, where vast amounts of glowing gas are thought to be falling into a central massive [16]black hole. [17]NGC 5643, is a relatively close 55 million light years away, spans about 100 thousand [18]light years across, and [19]can be seen with a small telescope towards the [20]constellation of the Wolf ([21]Lupus). Tomorrow's picture: big mars __________________________________________________________________ [22]< | [23]Archive | [24]Submissions | [25]Index | [26]Search | [27]Calendar | [28]RSS | [29]Education | [30]About APOD | [31]Discuss | [32]> __________________________________________________________________ Authors & editors: [33]Robert Nemiroff ([34]MTU) & [35]Jerry Bonnell ([36]UMCP) NASA Official: Phillip Newman [37]Specific rights apply. [38]NASA Web Privacy Policy and Important Notices A service of: [39]ASD at [40]NASA / [41]GSFC & [42]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2010/NGC5643_HubbleZamani_3816.jpg 3. https://www.esa.int/ 4. https://www.spacetelescope.org/ 5. https://www.nasa.gov/ 6. https://physics-astronomy.jhu.edu/directory/adam-riess/ 7. https://mahdizamani.com/about 8. https://en.wikipedia.org/wiki/NGC_5643 9. http://www.annualreviews.org/doi/abs/10.1146/annurev.astro.41.011802.094840 10. https://www.spacetelescope.org/images/potw2039a/ 11. https://www.spacetelescope.org/about/ 12. https://science.nasa.gov/ems/05_radiowaves 13. http://chandra.harvard.edu/learn_light.html 14. https://apod.nasa.gov/apod/ap140705.html 15. http://www.seyfertgalaxies.com/ 16. https://spaceplace.nasa.gov/black-holes/en/ 17. https://en.wikipedia.org/wiki/New_General_Catalogue 18. https://chandra.harvard.edu/photo/cosmic_distance.html 19. https://i.pinimg.com/originals/20/46/51/2046510c1f32fdb4944b98e4eca4e010.jpg 20. http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html 21. https://en.wikipedia.org/wiki/Lupus_(constellation) 22. https://apod.nasa.gov/apod/ap201004.html 23. https://apod.nasa.gov/apod/archivepix.html 24. https://apod.nasa.gov/apod/lib/apsubmit2015.html 25. https://apod.nasa.gov/apod/lib/aptree.html 26. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 27. https://apod.nasa.gov/apod/calendar/allyears.html 28. https://apod.nasa.gov/apod.rss 29. https://apod.nasa.gov/apod/lib/edlinks.html 30. https://apod.nasa.gov/apod/lib/about_apod.html 31. http://asterisk.apod.com/discuss_apod.php?date=201005 32. https://apod.nasa.gov/apod/ap201006.html 33. http://www.phy.mtu.edu/faculty/Nemiroff.html 34. http://www.phy.mtu.edu/ 35. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 36. http://www.astro.umd.edu/ 37. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 38. https://www.nasa.gov/about/highlights/HP_Privacy.html 39. https://astrophysics.gsfc.nasa.gov/ 40. https://www.nasa.gov/ 41. https://www.nasa.gov/centers/goddard/ 42. http://www.mtu.edu/