¿ 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 November 11 [2]See Explanation. Clicking on the picture will download the highest resolution version available. Colors of the Moon Image Credit & [3]Copyright: [4]Marcella Giulia Pace Explanation: What color is the Moon? It depends on the night. Outside of the Earth's atmosphere, the [5]dark Moon, which shines by reflected sunlight, appears a [6]magnificently brown-tinged gray. Viewed from inside the [7]Earth's atmosphere, though, the moon can appear quite different. The featured image highlights a collection of apparent colors of the full moon documented by one astrophotographer over 10 years from [8]different locations across [9]Italy. A [10]red or yellow colored moon usually indicates a moon seen near the horizon. There, some of the [11]blue light has been scattered away by a long path through the [12]Earth's atmosphere, sometimes laden with fine dust. A [13]blue-colored moon is more rare and can indicate a moon seen through an atmosphere carrying larger dust particles. What created the purple moon is [14]unclear -- it may be a combination of several effects. The last image captures the [15]total lunar eclipse of 2018 July -- where the moon, [16]in Earth's shadow, appeared a [17]faint red -- due to light [18]refracted through [19]air around the [20]Earth. The next full moon will occur at the end of this month ([21]moon-th) and is known in some cultures as the [22]Beaver Moon. Tomorrow's picture: open space __________________________________________________________________ [23]< | [24]Archive | [25]Submissions | [26]Index | [27]Search | [28]Calendar | [29]RSS | [30]Education | [31]About APOD | [32]Discuss | [33]> __________________________________________________________________ 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]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2011/MoonColors_Pace_960.jpg 3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 4. https://greenflash.photo/about-me/ 5. https://www.universetoday.com/19981/moon-albedo/ 6. https://apod.nasa.gov/apod/ap031109.html 7. https://climate.nasa.gov/news/2919/earths-atmosphere-a-multi-layered-cake/ 8. https://youtu.be/G0EUqGhYZ6Y 9. https://en.wikipedia.org/wiki/Italy 10. http://curious.astro.cornell.edu/about-us/46-our-solar-system/the-moon/observing-the-moon/142-why-are-the-moon-and-sun-sometimes-orange-or-red-beginner 11. https://spaceplace.nasa.gov/blue-sky/en/ 12. https://scied.ucar.edu/shortcontent/earths-atmosphere 13. https://www.loc.gov/everyday-mysteries/astronomy/item/what-is-a-blue-moon-is-it-ever-really-blue/ 14. https://s3.amazonaws.com/cdn-origin-etr.akc.org/wp-content/uploads/2018/09/29083523/GettyImages-157531381-1024x746.jpg 15. https://apod.nasa.gov/apod/ap190120.html 16. https://sservi.nasa.gov/wp-content/uploads/2014/04/si_lunar-eclipse_geometry.jpg 17. https://www.timeanddate.com/eclipse/why-does-moon-look-red-lunar-eclipse.html 18. https://www.sciencelearn.org.nz/resources/49-refraction-of-light 19. https://apod.nasa.gov/apod/ap140803.html 20. https://solarsystem.nasa.gov/planets/earth/overview/ 21. https://en.wikipedia.org/wiki/Lunar_month 22. https://www.almanac.com/content/full-moon-november 23. https://apod.nasa.gov/apod/ap201110.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=201111 33. https://apod.nasa.gov/apod/ap201112.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. http://www.mtu.edu/