Image of the Day: Eta Carina -Poised for Explosion?
Follow the Daily Galaxy
Add Daily Galaxy to igoogle page AddThis Feed Button Join The Daily Galaxy Group on Facebook Follow The Daily Galaxy Group on twitter
 

« Is Aging Becoming an Option? A Galaxy Classic | Main | Star Factories of the Southern Cross »

October 05, 2009

Image of the Day: Eta Carina -Poised for Explosion?

Lrg_ngc3372

NGC 3372, known as the Great Nebula in Carina, is home to massive stars and evolving nebula. Eta Carina, shown above is the most energetic star in the nebula was one of the brightest stars in the sky in the 1830s, but then faded dramatically. The Carina Nebula spans over 300 light years and lies about 7000 light-years away in the constellation of Carina. Eta Carina might explode in a dramatic supernova within the next thousand years, and has even flared in brightness over just the past decade.

With more than 100 times the mass of the Sun, Eta Carina produces more than a million times as much light as the Sun. Only a few dozen stars of this size -in the 120 solar mass range- exist in the Milky Way and are assumed to approach the Eddington limit, where the pressure of their radiation is almost strong enough to counteract gravity. 

Eta Carinae's had a massive eruption or supernova impostor event, which was observed around 1843. In a few years, Eta Carinae produced almost as much visible light as a supernova explosion, but it survived.

Carina_tan

 Image credit: NASA/ESA

Comments

Can you get me access to this image? I do not find it at NASA or the Hubble site. I am struck by the appearance of what loooks like a human heart at the center and would like to make that my new wallpaper. Thnaks

THATS AWESOME.... I LIKE IT,, ITS SO BRIGHT AND ALL THAT


Post a comment

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d8341bf7f753ef0120a6102838970c

Listed below are links to weblogs that reference Image of the Day: Eta Carina -Poised for Explosion?:

« Is Aging Becoming an Option? A Galaxy Classic | Main | Star Factories of the Southern Cross »




1


2


3


4


5


6


7


8





9


11


12


13


14


15

Our Partners

technology partners

A


19


B

About Us/Privacy Policy

For more information on The Daily Galaxy and to contact us please visit this page.



E