Bow shock in stellar jet HH 47

This video shows a close-up of a bow shock in Herbig-Haro object HH 47, a jet expelled from a newborn star in the southern constellation of Vela. Bow shocks like this are similar to the bow wave caused by a boat moving through water. They are produced by fast-moving material from the star colliding with slower-moving material.

The video was made by stitching together observations of HH 47 made in 1994, 1999 and 2008.


NASA, ESA, P. Hartigan (Rice University), G. Bacon (STScI)

About the Video

Release date:31 August 2011, 15:00
Related releases:heic1113
Duration:04 s

About the Object

Name:HH 47
Type:• Milky Way : Star : Evolutionary Stage : Young Stellar Object
• Milky Way : Nebula : Type : Jet



Large QT
655.2 KB


Video Podcast
428.4 KB
Medium MPEG-1
4.2 MB
Medium Flash
795.2 KB


Small Flash
340.6 KB
Small QT
158.1 KB

For Broadcasters

Broadcast SD
53.2 MB

Also see our

Accelerated by CDN77