Details of Supernova Remnant Cassiopeia A
Glowing gaseous streamers of red, white, and blue - as well as green and pink - illuminate the heavens like Fourth of July fireworks. The colorful streamers that float across the sky in this photo taken by the NASA/ESA Hubble Space Telescope were created by the universe's biggest firecracker, the titanic supernova explosion of a massive star.
The light from the exploding star reached Earth 320 years ago. The dead star's shredded remains are called Cassiopeia A, or 'Cas A' for short. Cas A is the youngest known supernova remnant in our Milky Way Galaxy and resides 10, 000 light-years away in the constellation Cassiopeia, so the star actually blew up 10, 000 years before the light reached Earth in the late 1600s.
About the Image
|Release date:||3 July 2002, 06:00|
|Size:||624 x 445 px|
About the Object
|Name:||Cassiopeia A, SNR 111.7-02.1|
|Type:||• Milky Way : Nebula : Type : Supernova Remnant|
• X - Nebulae Images/Videos
|Distance:||11000 light years|
Colours & filters
|450 nm||Hubble Space Telescope|
|675 nm||Hubble Space Telescope|
|850 nm||Hubble Space Telescope|