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The Catalogue of Nebulae and Clusters of Stars was first published in 1786 by William Herschel in the Philosophical Transactions of the Royal Society of London. [1] In 1789, he added another 1,000 entries, [2] and finally another 500 in 1802, [3] bringing the total to 2,500 entries. This catalogue originated the usage of letters and catalogue ...
By 1781 the final published list grows to 103 objects, 34 of which turn out to be galaxies. 1785 – William Herschel carried the first attempt to describe the shape of the Milky Way and the position of the Sun in it by carefully counting the number of stars in different regions of the sky. He produced a diagram of the shape of the galaxy with ...
Herschel's discoveries were supplemented by those of Caroline Herschel (11 objects) and his son John Herschel (1754 objects) and published by him as General Catalogue of Nebulae and Clusters in 1864. This catalogue was later edited by John Dreyer , supplemented with discoveries by many other 19th-century astronomers, and published in 1888 as ...
NGC 1163 was first observed by William Herschel on October 14, 1784, using his 18.7-inch reflecting telescope. The galaxy was later cataloged in the New General Catalogue (NGC) by John Louis Emil Dreyer. Its precise celestial coordinates place it in the Perseus constellation, making it a target for amateur and professional astronomers alike.
NGC 1162 is a lenticular galaxy located in the constellation Perseus.It was discovered by astronomer William Herschel on October 14, 1784. The galaxy lies approximately 200 million light-years away from Earth and is classified as a type SA0^−^ galaxy, indicating a smooth structure with little to no spiral features.
The original New General Catalogue was compiled during the 1880s by John Louis Emil Dreyer using observations from William Herschel and his son John, among others.Dreyer had already published a supplement to Herschel's General Catalogue of Nebulae and Clusters (GC), [2] containing about 1,000 new objects.
William Herschel splits sunlight through a prism and with a thermometer, measures the energy given out by different colours. He notices a sudden increase in energy beyond the red end of the spectrum , discovering invisible infrared and laying the foundations of spectroscopy.
NGC 6052 is a pair of galaxies in the constellation of Hercules. [2] It was discovered on 11 June 1784 by William Herschel. [4] It was described as "faint, pretty large, irregularly round" by John Louis Emil Dreyer, the compiler of the New General Catalogue. [4] The two components of NGC 6052 are designated NGC 6052A and NGC 6052B, respectively.