spacer
 
Advanced Search
Astrobiology Magazine Facebook  Astrobiology Magazine Twitter
the Witch Head Nebula
01/17/12
Double, double toil and trouble; Fire burn, and cauldron bubble -- maybe Macbeth should have consulted the Witch Head Nebula. This suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion. More formally known as IC 2118, the Witch Head Nebula glows primarily by light reflected from bright star Rigel, located just below the lower edge of the above image. Fine dust in the nebula reflects the light. The blue color is caused not only by Rigel's blue color but because the dust grains reflect blue light more efficiently than red. The same physical process causes Earth's daytime sky to appear blue, although the scatterers in Earth's atmosphere are molecules of nitrogen and oxygen. The nebula lies about 1000 light-years away. Credit & Copyright: Gimmi Ratto & Davide Bardini (Collecting Photons)
the Witch Head Nebula
Add to My Astro


 

Previous | 491-500 | 501-510 | 511-520 | 521-530 | 531-540 | 541-550 | 551-560 | 561-570 | 571-580 | 581-590 | 591-600 | Next  

 

 

 

About Us
Contact Us
Links
Sitemap
Podcast Rss Feed
Daily News Story RSS Feed
Latest News Story RSS Feed
Learn more about RSS
Chief Editor & Executive Producer: Helen Matsos
Copyright © 2014, Astrobio.net