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 July 6
     [2]The featured image shows a map of star motions in the Milky Way
   galaxy with red, mostly on the left, meaning stars are moving away us.
   Blue, on the right, shows stars there are mostly toward us. Please see
               the explanation for more detailed information.

                      Milky Way Motion in 3D from Gaia
   Credit & [3]License: [4]ESA, [5]Gaia, [6]DPAC; Text: [7]Ata Sarajedini
            ([8]Florida Atlantic U., [9]Astronomy Minute podcast)

   Explanation: Our sky is alive with the streams of stars. The
   [10]motions of 26 million [11]Milky Way stars are evident in the
   [12]featured map constructed from recent data taken by [13]ESA's
   [14]Gaia satellite. Stars colored blue are [15]moving toward us, while
   red indicates away. Lines depict the [16]motion of the stars across the
   sky. The large blue on the left and red areas on the map's right give
   the overall impression that stars in the Milky Way are [17]rotating
   around the center. However, there is a region near the middle -- caused
   by our own [18]Sun's motion relative to a rigidly-rotating central
   [19]Galactic bar -- that seems to reverse it. [20]Understanding details
   about the [21]motion of stars is [22]helping humanity to better
   understand the complex history of our [23]Milky Way galaxy and the
   origin of [24]our Sun.

                       Tomorrow's picture: open space
     __________________________________________________________________

      [25]< | [26]Archive | [27]Submissions | [28]Index | [29]Search |
   [30]Calendar | [31]RSS | [32]Education | [33]About APOD | [34]Discuss |
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     __________________________________________________________________

    Authors & editors: [36]Robert Nemiroff ([37]MTU) & [38]Jerry Bonnell
                                 ([39]UMCP)
          NASA Official: Phillip Newman [40]Specific rights apply.
              [41]NASA Web Privacy Policy and Important Notices
                A service of: [42]ASD at [43]NASA / [44]GSFC
                           & [45]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2207/MilkyWayMotion_Gaia_2000.jpg
   3. https://www.esa.int/ESA_Multimedia/Terms_and_Conditions
   4. https://www.esa.int/
   5. https://sci.esa.int/web/gaia
   6. https://www.cosmos.esa.int/web/gaia/dpac/consortium
   7. https://physics.fau.edu/people/faculty/sarajedini.php
   8. https://www.physics.fau.edu/
   9. https://open.spotify.com/show/3FD3BcXyAmVwyEqjb0tqHs
  10. https://apod.nasa.gov/apod/ap170417.html
  11. https://open.spotify.com/episode/3Tt2UH0yDcULzeIXmUJeOQ
  12. https://www.esa.int/ESA_Multimedia/Images/2022/06/Gaia_s_Milky_Way_in_motion_3D
  13. https://www.esa.int/
  14. https://ras.ac.uk/news-and-press/news/new-gaia-data-reveals-secrets-universe-0
  15. https://open.spotify.com/episode/5cXk1wfFRlPTXsGnVj8wYR
  16. https://open.spotify.com/episode/1CdS8mAzHMGdys1xjUtgOm
  17. http://www.astro.wisc.edu/~stantzos/index.html
  18. https://apod.nasa.gov/apod/ap100829.html
  19. https://apod.nasa.gov/apod/ap200611.html
  20. https://cdn.pixabay.com/photo/2019/09/04/08/24/cat-4451003_1280.jpg
  21. https://ui.adsabs.harvard.edu/abs/2022AAS...24021601K/abstract
  22. https://open.spotify.com/episode/399Iy3Sxvh0uoEATyHKjbZ
  23. http://www.atlasoftheuniverse.com/galaxy.html
  24. https://spaceplace.nasa.gov/menu/sun/
  25. https://apod.nasa.gov/apod/ap220705.html
  26. https://apod.nasa.gov/apod/archivepix.html
  27. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  28. https://apod.nasa.gov/apod/lib/aptree.html
  29. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  30. https://apod.nasa.gov/apod/calendar/allyears.html
  31. https://apod.nasa.gov/apod.rss
  32. https://apod.nasa.gov/apod/lib/edlinks.html
  33. https://apod.nasa.gov/apod/lib/about_apod.html
  34. http://asterisk.apod.com/discuss_apod.php?date=220706
  35. https://apod.nasa.gov/apod/ap220707.html
  36. http://www.phy.mtu.edu/faculty/Nemiroff.html
  37. http://www.phy.mtu.edu/
  38. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  39. http://www.astro.umd.edu/
  40. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  41. https://www.nasa.gov/about/highlights/HP_Privacy.html
  42. https://astrophysics.gsfc.nasa.gov/
  43. https://www.nasa.gov/
  44. https://www.nasa.gov/centers/goddard/
  45. http://www.mtu.edu/