Printer Friendly

Most distant supernova yet seen.

Most distant supernova yet seen

About 5 billion years ago, a star exploded into a supernova bright enough to be seen from Earth (5 billion light-years away) for barely a month. Fortunately, Danish astronomer Hans Ulrik Norgaard-Nielsen happened to be studying that part of the sky with te Danish 1.5-meter telescope at the European Southern Observatory in Chile when the supernova's light reached Earth this summer.

The star, the most distant supernova yet detected, is part of a galaxy in a cluster known as AC118, and would not have been recognizable by itself had it not blown up. It was detected by Norgaard-Nielson on Aug. 9, possibly less than a week after the brightening due to its explosion first reached Earth. Spectral measurements were hastily made, and by Sept. 6 the supernova had already faded to a point too faint to see.
COPYRIGHT 1988 Science Service, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1988, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Science News
Date:Oct 1, 1988
Previous Article:First look at an electron dance.
Next Article:From here to maternity: as more working women have babies, parents and employers ponder the future of 'parental' leave policies.

Related Articles
Echoing supernova.
A burst of new data from Supernova 1987A.
Supernova images and luminous arcs.
ROSAT revelations: satellite provides a new view of the X-ray and ultraviolet universe.
Supernova helps measure the cosmos.
The cosmos' fate: world without end.
Exploring an accelerating universe.
New supernova goes the cosmic distance.
Starry Data Support Revved-Up Cosmos.
Spotlight on an exploding star.

Terms of use | Copyright © 2016 Farlex, Inc. | Feedback | For webmasters