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 8
    [2]A red oval and textured nebula is seen surrounded by a faint blue
   glow. A bright star is visible in the center, and many faint stars are
   visible in the background. Please see the explanation for more detailed
                                information.

                      Stellar Wind-Shaped Nebula RCW 58
       Image Credit & Copyright: [3]Mike Selby & [4]Mark Hanson; Text:
                   [5]Natalia Lewandowska ([6]SUNY Oswego)

   Explanation: Imagine traveling to a star about [7]100 times as massive
   as our Sun, a million times more luminous, and with 30 times the
   surface temperature. Such stars exist, and some are known as [8]Wolf
   Rayet (WR) stars, named after French astronomers [9]Charles Wolf and
   [10]Georges Rayet. The central star in this image is [11]WR 40 which is
   located toward the constellation of [12]Carina. Stars like [13]WR 40
   live fast and die young in comparison with the [14]Sun. They quickly
   [15]exhaust their core hydrogen supply, [16]move on to fusing
   [17]heavier core elements, and expand while ejecting their outer layers
   via high [18]stellar winds. In this case, the central star [19]WR 40
   ejects the atmosphere at a speed of nearly [20]100 kilometers per
   second, and these outer layers have become the expanding oval-shaped
   nebula [21]RCW 58.

                Almost Hyperspace: [22]Random APOD Generator
                       Tomorrow's picture: open space
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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/Rcw58_Selby_4326.jpg
   3. https://www.facebook.com/masterdarksastro/
   4. https://www.hansonastronomy.com/
   5. https://www.oswego.edu/physics/natalia-lewandowska
   6. https://www.oswego.edu/physics/
   7. https://youtu.be/REHJvW53G54
   8. https://en.wikipedia.org/wiki/Wolf%E2%80%93Rayet_star
   9. https://en.wikipedia.org/wiki/Charles_Wolf_(astronomer)
  10. https://en.wikipedia.org/wiki/Georges_Rayet
  11. https://www.universeguide.com/star/54283/wr40
  12. https://chandra.harvard.edu/photo/constellations/carina.html
  13. https://apod.nasa.gov/apod/ap211021.html
  14. https://solarsystem.nasa.gov/solar-system/sun/in-depth/
  15. https://media.istockphoto.com/id/1286001342/photo/chinchilla-kitten-scottish-fold-longhair-white-kitten-sleeping-on-the-bar.jpg?s=612x612&w=0&k=20&c=13mY7SFuMTXrqcDJq8XQpD7C0wUIkQ0uGBwlsHBCf24=
  16. https://en.wikipedia.org/wiki/Stellar_evolution#Massive_stars
  17. http://apod.pl/htmltest/gifcity/msblues.html
  18. https://esahubble.org/wordbank/stellar-wind/
  19. https://apod.nasa.gov/apod/ap200308.html
  20. https://astrodonimaging.com/gallery/rcw-58-ring-nebula-in-carina/
  21. https://astrodrudis.com/rcw-58/
  22. https://apod.nasa.gov/apod/random_apod.html
  23. https://apod.nasa.gov/apod/ap230207.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=230208
  33. https://apod.nasa.gov/apod/ap230209.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/