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  1. 猫眼星云(Cat’sEyeNebula)为一行星状星云,位于 天龙座 。. 这个星云特别的地方,在于其结构几乎是所有有记录的星云当中最为复杂的一个。. 这个星云于1786年2月15日由 威廉·赫歇尔 (WilliamHerschel)首先发现。. 至1864年,英国 业余天文学家 威廉·赫金斯 ...

  2. The Cat's Eye Nebula, also known as NGC 6543, is a visual "fossil record" of the dynamics and late evolution of a dying star. It is estimated to be 1,000 years old. Structurally, the object has had high-resolution images by the Hubble Space Telescope revealing knots, jets, bubbles and complex arcs, being illuminated by the central hot planetary nebula nucleus.

  3. Explanation: To some it looks like a cat's eye. To others, perhaps like a giant cosmic conch shell. It is actually one of brightest and most highly detailed planetary nebula known, composed of gas expelled in the brief yet glorious phase near the end of life of a Sun-like star. This nebula 's dying central star may have produced the outer ...

  4. Cat's Eye Nebula ... Physical conditions in the planetary nebula NGC 6543, Monthly Notices of the Royal Astronomical Society, vol. 351, p.1026; Bianchi L., Cerrato S., Grewing M. (1986), Mass loss from central stars of planetary nebulae - The nucleus of NGC 6543, Astronomy and Astrophysics, vol. 169, p.227;

  5. Altri progetti Wikimedia Commons Wikimedia Commons contiene immagini o altri file su nebulosa Occhio di Gatto Collegamenti esterni [modifica | modifica wikitesto] (EN) Osservazioni ai raggi X della nebulosa da parte del telescopio Chandra (EN) NASA APOD - October 31, 1999: The Cat's Eye Nebula , su antwrp.gsfc.nasa.gov . (EN) Hubble Probes the Complex History of a Dying Star - Articolo sulla ...

  6. The Cat’s Eye Nebula is also known as NGC6543. It was first discovered in 1786. The Cat’s Eye Nebula was the first nebula to be studied by spectroscopy (in 1864). It consists of 11 or more expanding spheres of gas. These spheres look like rings from our perspective. The Cat’s Eye Nebula was formed during the death of an intermediate-sized ...

  7. Data sonification translates information collected by various NASA missions — such as the Chandra X-ray Observatory, Hubble Space Telescope, and Spitzer Spac...