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 February 20
     [2]A ball of yellow stars is seen to the right of blue-glowing gas
    filaments. Other blue filaments and foreground stars cover the frame.
          Please see the explanation for more detailed information.

                    NGC 1850: Not Found in the Milky Way
       Image Credit: [3]NASA, [4]ESA and [5]P. Goudfrooij ([6]STScI);
         Processing: [7]M. H. Özsaraç ([8]Türkiye Astronomi Dernegi)

   Explanation: There is nothing like this ball of stars in our Milky Way
   Galaxy. This is surprising because, at first glance, this [9]featured
   image by the [10]Hubble Space Telescope suggests that star cluster
   [11]NGC 1850's size and shape are reminiscent of the many [12]ancient
   globular [13]star clusters which roam our own [14]Milky Way Galaxy's
   halo. But NGC 1850's stars are all too young, making it a type of star
   cluster with [15]no known counterpart in the Milky Way. Moreover,
   [16]NGC 1850 is also a [17]double star cluster, with a second, compact
   cluster of stars visible here just to the right of the large cluster's
   center. Stars in the large cluster are estimated to be 50 million years
   young, while stars in the compact cluster are younger still, with an
   age of about 4 million years. A mere 168,000 [18]light-years distant,
   NGC 1850 is located near the outskirts of the [19]Large Magellanic
   Cloud galaxy. The glowing gas filaments across the image left, like
   [20]supernova remnants in our own galaxy, testify to violent
   [21]stellar explosions and indicate that short-lived massive [22]stars
   have recently been present in the region.

                      Tomorrow's picture: double falls
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    Authors & editors: [34]Robert Nemiroff ([35]MTU) & [36]Jerry Bonnell
                                 ([37]UMCP)
          NASA Official: Phillip Newman [38]Specific rights apply.
              [39]NASA Web Privacy Policy and Important 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/2302/Ngc1850_HubbleOzsarac_2048.jpg
   3. https://www.nasa.gov/
   4. https://www.esa.int/
   5. https://www.stsci.edu/~goudfroo/Blank.html
   6. https://www.stsci.edu/who-we-are
   7. https://www.flickr.com/photos/mhozsarac/
   8. https://www.tad.org.tr/
   9. https://www.flickr.com/photos/mhozsarac/52639407387/in/dateposted/
  10. https://www.nasa.gov/mission_pages/hubble/story/index.html
  11. https://en.wikipedia.org/wiki/NGC_1850
  12. https://apod.nasa.gov/apod/ap230130.html
  13. https://en.wikipedia.org/wiki/Globular_cluster
  14. https://en.wikipedia.org/wiki/Stellar_halo
  15. https://www.meme-arsenal.com/memes/4b87f4d2c84a7197cf9141e2e2295c4b.jpg
  16. https://hubblesite.org/contents/media/images/2001/25/1093-Image.html
  17. https://apod.nasa.gov/apod/ap221122.html
  18. https://spaceplace.nasa.gov/light-year/en/
  19. https://apod.nasa.gov/apod/ap200523.html
  20. https://apod.nasa.gov/apod/ap220113.html
  21. https://spaceplace.nasa.gov/supernova/en/
  22. https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve
  23. https://apod.nasa.gov/apod/ap230219.html
  24. https://apod.nasa.gov/apod/archivepix.html
  25. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  26. https://apod.nasa.gov/apod/lib/aptree.html
  27. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  28. https://apod.nasa.gov/apod/calendar/allyears.html
  29. https://apod.nasa.gov/apod.rss
  30. https://apod.nasa.gov/apod/lib/edlinks.html
  31. https://apod.nasa.gov/apod/lib/about_apod.html
  32. http://asterisk.apod.com/discuss_apod.php?date=230220
  33. https://apod.nasa.gov/apod/ap230221.html
  34. http://www.phy.mtu.edu/faculty/Nemiroff.html
  35. http://www.phy.mtu.edu/
  36. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  37. http://www.astro.umd.edu/
  38. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  39. https://www.nasa.gov/about/highlights/HP_Privacy.html
  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/