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Encyclopedia Galactica is the name of a number of fictional or hypothetical encyclopedias containing all the knowledge accumulated by a galaxy-spanning civilization, most notably in Isaac Asimov's Foundation series. The concept of a "future encyclopedia" has become "something iconic among many lovers of the science fiction", and has been reused ...
It contains 29,418 galaxies and 9,134 galaxy clusters. [1] [2] Gallery. I Zwicky 18. I Zwicky 32, a face-on spiral galaxy in the constellation Canes Venatici.
Suma de Cosmographia (Compendium de cosmographie) est considéré comme un extrait d'El arte de navegar qui contient des informations sur l'astrologie et la navigation, et écrit pour un public non spécialiste. Le manuscrit au format folio sur parchemin inclut 11 magnifiques figures astronomiques accompagnées de texte.
NGC 70 is a spiral galaxy located in the constellation Andromeda. [7] It was discovered on October 7, 1855, by R. J. Mitchell [ 7 ] and was observed on December 19, 1897, by Guillaume Bigourdan from France who described it as "extremely faint, very small, round, between 2 faint stars".
NGC 2403 (also known as Caldwell 7) is an intermediate spiral galaxy in the constellation Camelopardalis. It is an outlying member of the M81 Group , [ 3 ] and is approximately 8 million light-years distant.
IC 342 (also known as Caldwell 5) is an intermediate spiral galaxy in the constellation Camelopardalis, located relatively close to the Milky Way.Despite its size and actual brightness, its location behind dusty areas near the galactic equator makes it difficult to observe, leading to the nickname "The Hidden Galaxy", [4] [1] though it can readily be detected even with binoculars. [5]
UGC 2885 (Rubin's Galaxy, [10] nicknamed "Godzilla galaxy" [11]) is a large barred spiral galaxy of type SA(rs)c in the constellation Perseus.It is 232 million light-years (71 Mpc) from Earth and measures 463,000 ly (142,000 pc) across, making it one of the largest known spiral galaxies.
The New General Catalogue of Nebulae and Clusters of Stars (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and emission nebulae.