Home
 Space Photos - SEARCH
 Frequently Asked Questions
 New
 Hubble - APOD Selections
 Earth from Space Photos
 Robert Gendler Photos
 Apollo Gemini Mercury Photos
 Top 50
 Space Shuttle - Space Station Photos
 Recent Requests
 Spitzer Photos
 More Hubble Photos
 Astronaut Crew Portraits
 Chandra Catalog
 Planet Photos
 Comets - Asteroids
 Other Astronomy Photos
 Sun Photos
 Links I Use
 Gift Certificates
 Videos
 
 Show Order
 Help
 Index
 



Click to enlargeHubble Supernova 1987A Photo

Buy this SN 1987A space photo.
High quality Hubble picture, slide, or Duratrans backlit transparency. NASA photograph H2004-09a. Wide variety of sizes.


Fading Supernova Is Producing a Spectacular New Light Show.
Seventeen years ago, astronomers spotted the brightest stellar explosion ever seen since the one observed by Johannes Kepler 400 years ago. Called SN 1987A, the titanic supernova explosion blazed with the power of 100,000,000 suns for several months following its discovery on Feb. 23, 1987. Although the supernova itself is now a million times fainter than 17 years ago, a new light show in the space surrounding it is just beginning. This image, taken Nov. 28, 2003 by the Advanced Camera for Surveys aboard NASA's Hubble Space Telescope, shows many bright spots along a ring of gas, like pearls on a necklace. These cosmic "pearls" are being produced as a supersonic shock wave unleashed during the explosion slams into the ring at more than a million miles per hour. The collision is heating the gas ring, causing its innermost regions to glow.

Astronomers detected the first "hot spot" in 1996, but now they see dozens of them all around the ring. The temperature of the flares surges from a few thousand degrees to a million degrees Fahrenheit. Individual hot spots cannot be seen from ground-based telescopes. Only Hubble can resolve them. And, more hot spots are coming. In the next few years, the entire ring will be ablaze as it absorbs the full force of the crash. The glowing ring is expected to become bright enough to illuminate the star's surroundings, thus providing astronomers with new information on how the star ejected material before the explosion.

The elongated and expanding object in the middle of the ring is debris from the supernova blast. The glowing debris is being heated by radioactive elements, principally titanium 44, that were created in the supernova explosion. The debris will continue to glow for many decades. The ring, about a light-year across, already existed when the star exploded. Astronomers believe the star shed the ring about 20,000 years before the supernova blast. The violent death of a star 20 times more massive than the Sun, called a supernova, created this stellar drama. The star actually exploded about 160,000 years ago, but it has taken that long for its light to reach Earth. The supernova resides in the Large Magellanic Cloud, a nearby small galaxy that is a satellite or our Milky Way galaxy.

Since its launch in 1990, the Hubble telescope has watched the supernova drama unfold, taking periodic snapshots of the gradually fading ring. Now, the orbiting observatory will continue to monitor the ring as it brightens from this collision.

February 19, 2004
Credit: NASA, P. Challis, R. Kirshner (Harvard-Smithsonian Center for Astrophysics) and B. Sugerman (STScI)


H2004-09a
Select Size: 
Surface: 
Follow SpaceImages on Twitter
Want to receive email updates? Click here.
Questions or Comments? Click here to send e-mail.