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 April 13
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                      NGC 2419: Intergalactic Wanderer
          Image Credit: [3]ESA/Hubble, [4]NASA, [5]S. Larsen et al.

   Explanation: Stars of the globular cluster NGC 2419 are packed into
   this [6]Hubble Space Telescope [7]field of view toward the mostly
   stealthy constellation [8]Lynx. The two brighter spiky stars near the
   edge of the frame are within our own galaxy. [9]NGC 2419 itself is
   remote though, some 300,000 light-years away. In comparison, the Milky
   Way's satellite galaxy, the [10]Large Magellanic Cloud, is only about
   160,000 light-years distant. Roughly similar to other large globular
   star clusters like [11]Omega Centauri, NGC 2419 is intrinsically
   bright, but appears faint because it is so far away. Its extreme
   distance makes it difficult to [12]study and compare its properties
   with other globular clusters that roam the halo of our Milky Way
   galaxy. Sometimes called "the Intergalactic Wanderer", [13]NGC 2419
   really does seem to have come from beyond the Milky Way.
   [14]Measurements of the cluster's motion through space suggest it once
   belonged to the [15]Sagittarius dwarf spheroidal galaxy, another small
   satellite galaxy being disrupted by repeated encounters with the much
   larger Milky Way.

                     Tomorrow's picture: pixels in space
     __________________________________________________________________

      [16]< | [17]Archive | [18]Submissions | [19]Index | [20]Search |
   [21]Calendar | [22]RSS | [23]Education | [24]About APOD | [25]Discuss |
                                    [26]>
     __________________________________________________________________

    Authors & editors: [27]Robert Nemiroff ([28]MTU) & [29]Jerry Bonnell
                                 ([30]UMCP)
          NASA Official: Phillip Newman [31]Specific rights apply.
              [32]NASA Web Privacy Policy and Important Notices
                A service of: [33]ASD at [34]NASA / [35]GSFC,
                         [36]NASA Science Activation
                           & [37]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2304/hubble_ngc2419_potw1908a.jpg
   3. https://esahubble.org/
   4. https://www.nasa.gov/
   5. https://arxiv.org/abs/1902.01416
   6. https://www.nasa.gov/image-feature/goddard/2023/hubble-spies-a-multi-generational-cluster
   7. https://esahubble.org/images/potw1908a/
   8. http://en.wikipedia.org/wiki/Lynx_(constellation)
   9. http://messier.seds.org/xtra/ngc/n2419.html
  10. https://apod.nasa.gov/apod/ap130528.html
  11. https://apod.nasa.gov/apod/ap140529.html
  12. https://arxiv.org/abs/1902.01416
  13. http://arxiv.org/abs/1310.4499
  14. https://ui.adsabs.harvard.edu/abs/2017A&A...598L...9M/abstract
  15. https://en.wikipedia.org/wiki/Sagittarius_Dwarf_Spheroidal_Galaxy
  16. https://apod.nasa.gov/apod/ap230412.html
  17. https://apod.nasa.gov/apod/archivepix.html
  18. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  19. https://apod.nasa.gov/apod/lib/aptree.html
  20. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  21. https://apod.nasa.gov/apod/calendar/allyears.html
  22. https://apod.nasa.gov/apod.rss
  23. https://apod.nasa.gov/apod/lib/edlinks.html
  24. https://apod.nasa.gov/apod/lib/about_apod.html
  25. http://asterisk.apod.com/discuss_apod.php?date=230413
  26. https://apod.nasa.gov/apod/ap230414.html
  27. http://www.phy.mtu.edu/faculty/Nemiroff.html
  28. http://www.phy.mtu.edu/
  29. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  30. http://www.astro.umd.edu/
  31. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  32. https://www.nasa.gov/about/highlights/HP_Privacy.html
  33. https://astrophysics.gsfc.nasa.gov/
  34. https://www.nasa.gov/
  35. https://www.nasa.gov/centers/goddard/
  36. https://science.nasa.gov/learners
  37. http://www.mtu.edu/