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NASAs Cat's Eye Nebula Memo Pads
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  • Notepad: Front
  • Notepad: Left Side
    Left Side
  • Notepad: Right Side
    Right Side
About this product
Size: 5.5" x 6" Notepad - 40 pages

Jotting notes is more fun with your own custom notepad! Printed in sharp and full color, these notepads look great with any color image, text, or design. Featuring 40 easy tear-away pages of FSC certified paper, custom notebooks are perfect for the home or office.

  • Size: 5.5" x 6"
  • 40 single side tear-away pages
  • Design printed on every page
  • FSC certified paper
  • Hard cardboard backing
  • Designer Tip: To ensure the highest quality print, please note that this product’s customizable design area measures 5.5" x 6". For best results please add 1/8" bleed.
About this design
NASAs Cat's Eye Nebula Memo Pads
The Cat's Eye Nebula (NGC 6543, Caldwell 6) is a planetary nebula in the constellation of Draco. Structurally, it is one of the most complex nebulae known, with high-resolution Hubble Space Telescope observations revealing remarkable structures such as knots, jets, bubbles and sinewy arc-like features. In the center of the Cat's Eye there is a bright and hot star; around 1000 years ago this star lost its outer envelope, producing the nebula. It was discovered by William Herschel on February 15, 1786, and was the first planetary nebula whose spectrum was investigated by the English amateur astronomer William Huggins in 1864. The results of the latter investigation demonstrated for the first time that planetary nebulae consist of hot gases, but not stars. Currently the nebula has been observed across the full electromagnetic spectrum, from far-infrared to X-rays. Modern studies reveal several mysteries. The intricacy of the structure may be caused in part by material ejected from a binary central star, but as yet, there is no direct evidence that the central star has a companion. Also, measurements of chemical abundances reveal a large discrepancy between measurements done by two different methods, the cause of which is uncertain. Hubble Telescope observations revealed a number of faint rings around the Eye, which are spherical shells ejected by the central star in the distant past. The exact mechanism of those ejections, however, is unclear.
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NASAs Cat's Eye Nebula Memo Pads

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Other Info

Product ID: 133596647205905394
Created on: 1/4/2013 8:01 AM
Reference: Guide Files