¿ 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. 2020 October 13 [2]See Explanation. Moving the cursor over the image will bring up an annotated version. Clicking on the image will bring up the highest resolution version available. Mars, Pleiades, and Andromeda over Stone Lions Image Credit & Copyright: [3]Cem Özkeser Explanation: Three very different -- and very famous -- objects were all captured in a single frame last month. On the upper left is the bright blue [4]Pleiades, perhaps the most famous cluster of stars on the night sky. The [5]Pleiades (M45) is about 450 [6]light years away and easily found a [7]few degrees from Orion. On the upper right is the [8]expansive Andromeda Galaxy, perhaps the most famous galaxy -- external to our own -- on the night sky. [9]Andromeda (M31) is one of few objects visible to the unaided eye where you can see light that is millions of years old. In the middle is [10]bright red Mars, perhaps the most famous planet on the night sky. Today Mars is at [11]opposition, meaning that it is opposite the Sun, with the result that it is visible all night long. In the foreground is an ancient tomb in the [12]Phygrian Valley in [13]Turkey. The tomb, featuring [14]two stone lions, is an impressive remnant of a [15]powerful civilization that lived thousands of years ago. [16]Mars, currently [17]near its brightest, can be [18]easily found toward the east just after sunset. Tomorrow's picture: a colorful space __________________________________________________________________ [19]< | [20]Archive | [21]Submissions | [22]Index | [23]Search | [24]Calendar | [25]RSS | [26]Education | [27]About APOD | [28]Discuss | [29]> __________________________________________________________________ Authors & editors: [30]Robert Nemiroff ([31]MTU) & [32]Jerry Bonnell ([33]UMCP) NASA Official: Phillip Newman [34]Specific rights apply. [35]NASA Web Privacy Policy and Important Notices A service of: [36]ASD at [37]NASA / [38]GSFC & [39]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2010/MarsTriangle_Ozkeser_3516.jpg 3. https://www.instagram.com/cem.ozkeser.raw/ 4. https://apod.nasa.gov/apod/ap200909.html 5. https://en.wikipedia.org/wiki/Pleiades 6. https://spaceplace.nasa.gov/light-year/en/ 7. https://apod.nasa.gov/apod/ap151103.html 8. https://apod.nasa.gov/apod/ap200925.html 9. https://en.wikipedia.org/wiki/Andromeda_Galaxy 10. https://apod.nasa.gov/apod/ap201006.html 11. https://solarsystem.nasa.gov/resources/12972/ringside-seats-for-saturn/ 12. https://en.wikipedia.org/wiki/Phrygians 13. https://en.wikipedia.org/wiki/Turkey 14. https://dspace.ankara.edu.tr/xmlui/bitstream/handle/20.500.12575/60412/22557.pdf?sequence=1&isAllowed=y 15. https://en.wikipedia.org/wiki/Phrygians#History_2 16. https://solarsystem.nasa.gov/planets/mars/overview/ 17. https://earthsky.org/astronomy-essentials/double-moon-on-august-27 18. https://apod.nasa.gov/apod/ap180709.html 19. https://apod.nasa.gov/apod/ap201012.html 20. https://apod.nasa.gov/apod/archivepix.html 21. https://apod.nasa.gov/apod/lib/apsubmit2015.html 22. https://apod.nasa.gov/apod/lib/aptree.html 23. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 24. https://apod.nasa.gov/apod/calendar/allyears.html 25. https://apod.nasa.gov/apod.rss 26. https://apod.nasa.gov/apod/lib/edlinks.html 27. https://apod.nasa.gov/apod/lib/about_apod.html 28. http://asterisk.apod.com/discuss_apod.php?date=201013 29. https://apod.nasa.gov/apod/ap201014.html 30. http://www.phy.mtu.edu/faculty/Nemiroff.html 31. http://www.phy.mtu.edu/ 32. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 33. http://www.astro.umd.edu/ 34. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 35. https://www.nasa.gov/about/highlights/HP_Privacy.html 36. https://astrophysics.gsfc.nasa.gov/ 37. https://www.nasa.gov/ 38. https://www.nasa.gov/centers/goddard/ 39. http://www.mtu.edu/