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The number of nebulae was then greatly increased by the efforts of William Herschel and his sister, Caroline Herschel. Their Catalogue of One Thousand New Nebulae and Clusters of Stars [16] was published in 1786. A second catalog of a thousand was published in 1789, and the third and final catalog of 510 appeared in 1802.
Betelgeuse's color may have changed from yellow (or possibly orange; i.e. a yellow supergiant) to red in the last few thousand years, based on a 2022 review of historical records. This color change combined with the CMD suggest a mass of 14 M ☉ and age of 14 Myr, and a distance from 125 to 150 parsecs (~400 to 500 light years). [12]
Eye of Sauron Nebula M 1-42: 10 14 Sagittarius ... Name Messier Catalogue [a] NGC [a] Other designation [a] Date discovered [a] Distance [a] [b] Apparent magnitude
The following articles contain lists of nebulae: List of dark nebulae; List of diffuse nebulae; List of largest nebulae; List of planetary nebulae;
Jones-Emberson 1 is a planetary nebula in Lynx, named after Rebecca Jones and Richard M. Emberson. Kleinmann–Low Nebula is a star-forming region found at the center of the Orion Nebula, named after named after Douglas Kleinmann and Frank J. Low. McNeil's Nebula is a variable nebula in Orion, named after Jay McNeil.
The observations came from the Webb telescope, which surveyed a nebula named NGC 1333. The giant space cloud of dust and gas is 960 light-years away in the Perseus constellation.
It is known as the Blue Snowball Nebula, Snowball Nebula, and Caldwell 22. This nebula was discovered October 6, 1784 by the German-born English astronomer William Herschel . In the New General Catalogue it is described as a "magnificent planetary or annular nebula, very bright, pretty small in angular size , round, blue, variable nucleus".
It has an overall magnitude of 8.0 and a central star of magnitude 11.0; it is 2600 light-years from Earth. The Blue Planetary was discovered by John Herschel and named for its color's similarity to Uranus, though the nebula is apparently three times larger than the planet. [2] Centaurus is rich in galaxies as well.