Search results
Results from the WOW.Com Content Network
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 ...
The William Herschel Double Star Catalogs Restored; Full text of Herschel by Hector Macpherson. Full text of The Story of the Herschels (1886) from Project Gutenberg; Portraits of William Herschel Archived 30 September 2007 at the Wayback Machine at the National Portrait Gallery (United Kingdom) Herschel Museum of Astronomy located in his Bath home
William Herschel proves it is a very small object, calculating it to be only 320 km in diameter, and not a planet. He proposes the name asteroid, and soon other similar bodies are being found. He proposes the name asteroid, and soon other similar bodies are being found.
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 ...
Types of galaxies according to the Hubble classification scheme : an E indicates a type of elliptical galaxy; an S is a spiral; and SB is a barred spiral galaxy. Galaxies come in three main types: ellipticals, spirals, and irregulars. A slightly more extensive description of galaxy types based on their appearance is given by the Hubble sequence.
The William Herschel's 40-foot (12 m) telescope 1781 – Charles Messier and his assistant Pierre Méchain publish the first catalogue of 110 nebulae and star clusters , the most prominent deep-sky objects that can easily be observed from Earth's Northern Hemisphere , in order not to be confused with ordinary Solar System's comets .
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.
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.