We have launched the new Spitzer website! Send feedback to outreach@ipac.caltech.edu. Find the old website at http://legacy.spitzer.caltech.edu.
Hubble View of Kepler's Supernova Remnant - SN 1604
Ssc2004 15a4

Credit: NASA/ESA/R. Sankrit and W. Blair (Johns Hopkins University)

Observation • October 6th, 2004 • ssc2004-15a4


This image from the Hubble Space Telescope shows the expanding remains of a supernova, called Kepler's supernova remnant, first seen 400 years ago by sky watchers, including famous astronomer Johannes Kepler. The supernova remnant is a fast-moving shell of iron-rich material from an exploded star, surrounded by an expanding shock wave that is sweeping up interstellar gas and dust.

This visible-light image from the Hubble telescope's Advanced Camera for Surveys reveals where the supernova shock wave is slamming into the densest regions of surrounding gas. The bright glowing knots are dense clumps from instabilities that form behind the shock wave. The Hubble data also show thin filaments of gas that look like rippled sheets seen edge-on. These filaments reveal where the shock wave is encountering lower-density, more uniform interstellar material.

Kepler's supernova, the last such object seen to explode in our Milky Way galaxy, resides about 13,000 light-years away in the constellation Ophiuchus.

The Hubble observations were taken in August 2003.

About the Object

Kepler's Supernova RemnantSN 1604
Nebula > Type > Supernova Remnant
Star > Evolutionary Stage > Supernova
13,000 Light Years

Color Mapping

Band Wavelength Telescope
Optical 656 nm Hubble WFPC2


Position (J2000)
RA =17h 30m 41.5s
Dec = -21° 29' 31.2"
Field of View
5.0 x 5.0 arcminutes
North is 360.6° left of vertical