1. Our web server is getting tweaked this week and as a result some links are behaving strange. We're working on getting everything back to normal ASAP.
    Dismiss Notice
Dismiss Notice
Alien Soup is a free community for fans of science-fiction, horror, & fantasy! Everybody is welcome here.

Space Thor's Helmet (NGC 2359) and Planetary Nebula

Discussion in 'Tech, Science, and Space' started by Robby, Mar 12, 2009.

Tags:
  1. Robby

    Robby The Robot

    Joined:
    Jul 28, 2004
    Location:
    Terra
    NASA Astronomy Picture Of The Day
    Thor's Helmet (NGC 2359) and Planetary Nebula


    [​IMG]


    Thor's Helmet (NGC 2359) and Planetary Nebula
    Credit & Copyright: Rogelio Bernal Andreo, Ray Gralak

    Explanation: At the right, Thor's Helmet (NGC 2359) seems to gaze across a lovely star field. The broad skyscape itself covers about 1.5 degrees or 3 full moons toward the constellation Canis Major. A close look at the lower left corner of the image might identify the object of the cosmic stare as a faint, round nebula. Heroically sized even for a Norse god, Thor's Helmet is about 30 light-years across. The helmet is actually more like an interstellar bubble, blown as a fast wind from the bright, massive star near the bubble's center sweeps through a surrounding molecular cloud. Known as a Wolf-Rayet star, the central star is an extremely hot giant thought to be in a brief, pre- supernova stage of evolution. In contrast, the faint, round nebula is a planetary nebula, the gaseous shroud of a dying lower mass star. The distance to Thor's Helmet is estimated to be about 15,000 light-years.



    (Via NASA)
     

Share This Page