Headlines > News > Hubble Nets an Interstellar Butterfly

Hubble Nets an Interstellar Butterfly

Published by Klaus Schmidt on Fri Mar 14, 2014 3:51 pm via: NASA
Share
More share options
Tools
Tags

The “butterfly effect” says the flap of a butterfly’s wings may lead to a developing hurricane on the other side of the world. But what happens when a butterfly flaps its wings in the depths of space?

This cosmic butterfly is a nebula known as AFGL 4104, or Roberts 22. Caused by a star that is nearing the end of its life and has shrugged off its outer layers, the nebula emerges as a cosmic chrysalis to produce this striking sight. Studies of the lobes of Roberts 22 have shown an amazingly complex structure, with countless intersecting loops and filaments.

Credit: NASA, ESA.  Acknowledgement: R. Sahai, NASA's Jet Propulsion Laboratory

Credit: NASA, ESA. Acknowledgement: R. Sahai, NASA's Jet Propulsion Laboratory

A butterfly’s life span is counted in weeks; although on a much longer timescale, this stage of life for Roberts 22 is also transient. It is currently a pre-planetary nebula, a short-lived phase that begins once a dying star has pushed much of the material in its outer layers into space, and ends once this stellar remnant becomes hot enough to ionize the surrounding gas clouds and make them glow. About 400 years ago, the star at the center of Roberts 22 shed its outer shells, which raced outwards to form this butterfly. The central star will soon be hot enough to ionize the surrounding gas, and it will evolve into a fully-fledged planetary nebula.

No comments
Start the ball rolling by posting a comment on this article!
Leave a reply
You must be logged in to post a comment.
© 2014 The International Space Fellowship, developed by Gabitasoft Interactive. All Rights Reserved.  Privacy Policy | Terms of Use