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. 2019 August 30 [2]See Explanation. Clicking on the picture will download the highest resolution version available. NGC 7129 and NGC 7142 Image Credit & [3]Copyright: [4]Steve Cannistra ([5]StarryWonders) Explanation: [6]This wide-field telescopic image looks toward the constellation [7]Cepheus and an intriguing visual pairing of dusty [8]reflection nebula NGC 7129 (right) and [9]open star cluster NGC 7142. The two appear separated by only half a degree on the sky, but they actually lie at quite different distances. In the foreground, [10]dusty nebula NGC 7129 is about 3,000 light-years distant, while open cluster [11]NGC 7142 is likely over 6,000 light-years away. In fact, pervasive and clumpy foreground dust clouds in this region redden the light from NGC 7142, [12]complicating astronomical explorations of the cluster. Still, NGC 7142 is thought to be an [13]older open star cluster, while the bright stars embedded in NGC 7129 are perhaps a few million years young. The telltale reddish crescent shapes around NGC 7129 are associated with [14]energetic jets streaming away from newborn stars. Tomorrow's picture: Spitzer's Orion __________________________________________________________________ [15]< | [16]Archive | [17]Submissions | [18]Index | [19]Search | [20]Calendar | [21]RSS | [22]Education | [23]About APOD | [24]Discuss | [25]> __________________________________________________________________ Authors & editors: [26]Robert Nemiroff ([27]MTU) & [28]Jerry Bonnell ([29]UMCP) NASA Official: Phillip Newman [30]Specific rights apply. [31]NASA Web Privacy Policy and Important Notices A service of: [32]ASD at [33]NASA / [34]GSFC & [35]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/1908/ngc7129largerCannistra.jpg 3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 4. http://www.starrywonders.com/copyright.html 5. http://www.starrywonders.com/ 6. http://www.starrywonders.com/ngc7129small.html 7. http://www.hawastsoc.org/deepsky/cep/index.html 8. https://apod.nasa.gov/apod/ap011228.html 9. http://en.wikipedia.org/wiki/Open_cluster 10. https://apod.nasa.gov/apod/ap160829.html 11. http://www.univie.ac.at/webda/cgi-bin/ocl_page.cgi?dirname=ngc7142 12. http://astronomy.swin.edu.au/cosmos/I/Interstellar+Reddening 13. https://apod.nasa.gov/apod/ap070809.html 14. http://hubblesite.org/newscenter/archive/releases/1995/24/image/a 15. https://apod.nasa.gov/apod/ap190829.html 16. https://apod.nasa.gov/apod/archivepix.html 17. https://apod.nasa.gov/apod/lib/apsubmit2015.html 18. https://apod.nasa.gov/apod/lib/aptree.html 19. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 20. https://apod.nasa.gov/apod/calendar/allyears.html 21. https://apod.nasa.gov/apod.rss 22. https://apod.nasa.gov/apod/lib/edlinks.html 23. https://apod.nasa.gov/apod/lib/about_apod.html 24. http://asterisk.apod.com/discuss_apod.php?date=190830 25. https://apod.nasa.gov/apod/ap190831.html 26. http://www.phy.mtu.edu/faculty/Nemiroff.html 27. http://www.phy.mtu.edu/ 28. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 29. http://www.astro.umd.edu/ 30. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 31. https://www.nasa.gov/about/highlights/HP_Privacy.html 32. https://astrophysics.gsfc.nasa.gov/ 33. https://www.nasa.gov/ 34. https://www.nasa.gov/centers/goddard/ 35. http://www.mtu.edu/