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The Cat's Eye Nebula (also known as NGC 6543 and Caldwell 6) is a planetary nebula in the northern constellation of Draco, discovered by William Herschel on February 15, 1786. It was the first planetary nebula whose spectrum was investigated by the English amateur astronomer William Huggins , demonstrating that planetary nebulae were gaseous ...
Cat's Eye Nebula: 3.5 × 10 15 meters 2.5 × 10 15 meters Hourglass Nebula — 3 × 10 15 meters Blinking Nebula — 4.5 × 10 15 meters Light year: 9.5 × 10 15 meters 10 16 meters Rotten Egg Nebula — 1 light year 1.4 × 10 16 meters Ring Nebula: 1.3 × 10 16 meters 2 light years 1.7 × 10 16 meters Oort cloud: 1.5 × 10 15 meters 2 light ...
The Cat's Eye Nebula is one of the most intricate and complex planetary nebulae known. This Hubble Space Telescope image reveals a mass of twists and knots of material in the nebula's inner region. The origin of this structure is not yet well understood by astronomers .
Iris Nebula: Open Cluster and Nebula: 1.4 Cepheus: 7 C5 IC 342: Hidden Galaxy [7] Spiral Galaxy: 10,000 Camelopardalis: 9 C6 NGC 6543: Cat's Eye Nebula: Planetary Nebula: 3 Draco: 9 C7 NGC 2403 Spiral Galaxy: 14,000 Camelopardalis: 8.4 C8 NGC 559 Open Cluster: 3.7 Cassiopeia: 9.5 C9 Sh2-155: Cave Nebula: Nebula: 2.8 Cepheus: 7.7 C10 NGC 663 ...
Typical DSO survey in Celestia. Celestia versions 1.6.3 and under display the Hipparcos Catalogue (HIP) of 118,322 stars and a compiled catalogue of galaxies, while version 1.7.0 includes stars from the Tycho-2 Catalogue alongside the Hipparcos stars, with some data from Gaia, increasing the star count to over 2 million. [23]
Beginning Tuesday, current Nebula customers be given one “guest pass” per month for monthly subscribers, or three per quarter for annual and lifetime accounts, that they can offer to anyone ...
Trump HHS Secretary nominee Robert F. Kennedy Jr. will face questions on several controversial topics from senators when he makes the rounds on Capitol Hill this week.
However, a lower proportion of protein claim foods had high free sugar and saturated fat. There were also differences when it came to looking at the individual food types. For example, researchers ...