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. 2025 November 26 [2]A starfield is shown with thin wisps of gray and red running through it. In the center is an usual ball -- which is a globular cluster of stars upon closer inspection. Please see the explanation for more detailed information. Globular Cluster M15 Deep Field Image Credit & Copyright: [3]Alvaro Ibanez Perez Explanation: Stars, like bees, swarm around the center of bright globular cluster M15. The central ball of over 100,000 [4]stars is a relic from the [5]early years of [6]our Galaxy, and continues to orbit the [7]Milky Way's center. [8]M15, one of about 150 [9]globular clusters remaining, is noted for being easily visible with only [10]binoculars, having at its center one of the [11]densest concentrations of stars known, and containing a high abundance of [12]variable stars and [13]pulsars. The featured image of M15 was taken by combining [14]very long exposures -- 122 hours in all -- and so brings up [15]faint wisps of gas and dust in front of the giant ball of stars. [16]M15 lies about 35,000 [17]light years away toward the [18]constellation of the Winged Horse ([19]Pegasus). Almost Hyperspace: [20]Random APOD Generator Tomorrow's picture: open space __________________________________________________________________ [21]< | [22]Archive | [23]Submissions | [24]Index | [25]Search | [26]Calendar | [27]RSS | [28]Education | [29]About APOD | [30]Discuss | [31]> __________________________________________________________________ Authors & editors: [32]Robert Nemiroff ([33]MTU) & [34]Jerry Bonnell ([35]UMCP) NASA Official: Amber Straughn [36]Specific rights apply. [37]NASA Web Privacy, [38]Accessibility, [39]Notices; A service of: [40]ASD at [41]NASA / [42]GSFC, [43]NASA Science Activation & [44]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2511/M15Deep_AIP_5585.jpg 3. https://aipastroimaging.com/sobre-mi/ 4. https://science.nasa.gov/universe/stars/ 5. https://apod.nasa.gov/apod/ap980719.html 6. https://science.nasa.gov/resource/the-milky-way-galaxy/ 7. https://apod.nasa.gov/apod/ap241124.html 8. https://youtu.be/hmN7Rj2ns3M 9. https://en.wikipedia.org/wiki/Globular_cluster 10. https://www.explainthatstuff.com/binoculars.html 11. https://apod.nasa.gov/apod/ap000804.html 12. https://apod.nasa.gov/apod/ap070415.html 13. https://svs.gsfc.nasa.gov/10144 14. https://www.reddit.com/media?url=https://i.redd.it/sohddm6tj00c1.jpg 15. https://en.wikipedia.org/wiki/Integrated_Flux_Nebula 16. https://apod.nasa.gov/apod/ap190328.html 17. http://chandra.harvard.edu/photo/cosmic_distance.html 18. https://spaceplace.nasa.gov/constellations/ 19. https://en.wikipedia.org/wiki/Pegasus_(constellation) 20. https://apod.nasa.gov/apod/random_apod.html 21. https://apod.nasa.gov/apod/ap251125.html 22. https://apod.nasa.gov/apod/archivepix.html 23. https://apod.nasa.gov/apod/lib/apsubmit2015.html 24. https://apod.nasa.gov/apod/lib/aptree.html 25. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 26. https://apod.nasa.gov/apod/calendar/allyears.html 27. https://apod.com/feed.rss 28. https://apod.nasa.gov/apod/lib/edlinks.html 29. https://apod.nasa.gov/apod/lib/about_apod.html 30. https://asterisk.apod.com/discuss_apod.php?date=251126 31. https://apod.nasa.gov/apod/ap251127.html 32. http://www.phy.mtu.edu/faculty/Nemiroff.html 33. http://www.phy.mtu.edu/ 34. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 35. http://www.astro.umd.edu/ 36. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 37. https://www.nasa.gov/about/highlights/HP_Privacy.html 38. https://www.nasa.gov/general/accessibility/ 39. https://www.nasa.gov/privacy/ 40. https://astrophysics.gsfc.nasa.gov/ 41. https://www.nasa.gov/ 42. https://www.nasa.gov/centers/goddard/ 43. https://science.nasa.gov/learners 44. http://www.mtu.edu/