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The Crab Nebula from the Hubble Space Telescope Greeting Card
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About this product
Size: Greeting Card

Keep in touch with Zazzle custom greeting cards. Customize all parts of this folded card – inside and out, front and back – for free!

  • Dimensions: 5" x 7" (portrait) or 7" x 5" (landscape).
  • Printed on ultra-heavyweight (120 lb.) card stock with a gloss finish.
  • Each card comes with a white envelope.
  • No minimum order.
  • May be available on Note Card size
  • Designer Tip: To ensure the highest quality print, please note that this product has multiple customizable design areas:
    • Front: 5" x 7" (portrait) or 7" x 5" (landscape).
    • Inside (top/left): 5" x 7" or 7" x 5" .
    • Inside (bottom/right): 5" x 7" or 7" x 5".
    • Back: 3" x 4" or 4" x 3".
About this design
The Crab Nebula from the Hubble Space Telescope Greeting Card
This is a mosaic image, one of the largest ever taken by NASA's Hubble Space Telescope of the Crab Nebula, a six-light-year-wide expanding remnant of a star's supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans.

The orange filaments are the tattered remains of the star and consist mostly of hydrogen. The rapidly spinning neutron star embedded in the center of the nebula is the dynamo powering the nebula's eerie interior bluish glow. The blue light comes from electrons whirling at nearly the speed of light around magnetic field lines from the neutron star. The neutron star, like a lighthouse, ejects twin beams of radiation that appear to pulse 30 times a second due to the neutron star's rotation. A neutron star is the crushed ultra-dense core of the exploded star.

The Crab Nebula derived its name from its appearance in a drawing made by Irish astronomer Lord Rosse in 1844, using a 36-inch telescope. When viewed by Hubble, as well as by large ground-based telescopes such as the European Southern Observatory's Very Large Telescope, the Crab Nebula takes on a more detailed appearance that yields clues into the spectacular demise of a star, 6,500 light-years away.

The newly composed image was assembled from 24 individual Wide Field and Planetary Camera 2 exposures taken in October 1999, January 2000, and December 2000. The colors in the image indicate the different elements that were expelled during the explosion. Blue in the filaments in the outer part of the nebula represents neutral oxygen, green is singly-ionized sulfur, and red indicates doubly-ionized oxygen.

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http://commons.wikimedia.org/wiki/File:Crab_Nebula.jpg

nebula crab space astronomy hubble "crab nebula" "hubble telescope" "outer space"
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The Crab Nebula from the Hubble Space Telescope Greeting Card

$4.20 per card
Artwork designed by astronomical. Made by Zazzle Greeting Cards in San Jose, CA. Sold by Zazzle.
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Other Info

Product ID: 137307802213609071
Created on: 2/25/2011 1:03 PM
Reference: Guide Files