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.

                                 2024 July 8
     [2]A graphic illustrates hundreds of possible exoplanets, with blue
     drawings of planets in the middle, red on the right, and tan on the
   left. Some exoplanets are drawn with rings. Please see the explanation
                       for more detailed information.

                         Exoplanet Zoo: Other Stars
       Illustration Credit & Copyright: [3]Martin Vargic, Halcyon Maps

   Explanation: Do other stars have planets like our Sun? Surely they do,
   and evidence includes slight star wobbles created by the gravity of
   orbiting [4]exoplanets and slight star dimmings caused by orbiting
   planets moving in front. In all, there have now been over 5,500
   [5]exoplanets discovered, including thousands by [6]NASA's space-based
   [7]Kepler and [8]TESS missions, and over 100 by [9]ESO's ground-based
   [10]HARPS instrument. [11]Featured here is an illustrated guess as to
   what some of these [12]exoplanets might look like. [13]Neptune-type
   planets occupy the middle and are colored blue because of
   blue-scattering [14]atmospheric methane they might contain. On the
   sides of the illustration, [15]Jupiter-type planets are shown, colored
   tan and red from the scatterings of atmospheric gases that likely
   include small amounts of [16]carbon. Interspersed are many Earth-type
   [17]rocky planets of many colors. As more [18]exoplanets are discovered
   and [19]investigated, humanity is developing a [20]better understanding
   of how common Earth-like planets are, and how common life might be in
   the universe.

                     Tomorrow's picture: highest clouds
     __________________________________________________________________

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    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/2407/ExoplanetZoo_Vargic_2000.jpg
   3. https://www.facebook.com/martin.vargic.9/
   4. https://science.nasa.gov/exoplanets/
   5. https://apod.nasa.gov/apod/ap190710.html
   6. https://www.nasa.gov/
   7. https://science.nasa.gov/mission/kepler/
   8. https://science.nasa.gov/mission/tess/
   9. https://www.eso.org/public/
  10. https://www.eso.org/public/teles-instr/lasilla/36/harps/
  11. https://www.halcyonmaps.com/#/the-exoplanet-zoo/
  12. https://exoplanets.nasa.gov/what-is-an-exoplanet/overview/
  13. https://apod.nasa.gov/apod/ap230527.html
  14. https://apod.nasa.gov/apod/ap190422.html
  15. https://science.nasa.gov/jupiter/
  16. https://periodic.lanl.gov/6.shtml
  17. https://apod.nasa.gov/apod/ap230201.html
  18. https://en.wikipedia.org/wiki/Lists_of_planets
  19. https://www.nasa.gov/image-article/nasas-webb-reveals-steamy-atmosphere-of-distant-planet-detail/
  20. https://i.pinimg.com/736x/cc/1f/d2/cc1fd22b9cd2bf70dc1068310a0a3067.jpg
  21. https://apod.nasa.gov/apod/ap240707.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=240708
  31. https://apod.nasa.gov/apod/ap240709.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/