Number One of Common Deep Sky Catalogs

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M - Messier The first edition of Charles Messier's Catalog was published in 1774. It contains 110 objects in it's final release and it is the first more reliable and comprehensive catalog of deep sky objects.

M 1 is a supernova remnant in the constellation Taurus.

NGC - New General Catalog J.L.E. Dreyer published the New General Catalogue of Nebulae and Clusters of Stars in 1888. It is an attempt to compile a comprehensive list of all deep sky objects known at that time, including the catalogs of the Herschels and Lord Rosse. Most of these objects had been discovered visually.

NGC 1 is a spiral galaxy in the constellation Pegasus. To the south of NGC 1 one can find NGC 2.

IC - Index Catalog The first edition of the Index Catalogue of Nebulae was published by J.L.E. Dreyer between 1888 and 1894. The Second Index Catalogue of Nebulae was finished in 1907. Many IC objects had been discovered photographically.

IC 1 is not a deep sky object, but a double star in constellation Pegasus.

B - Barnard E.E. Barnard published a Catalogue of 349 Dark Objects in the Sky in 1927. It is the first catalog of dark nebulae, created from photos.

B 1 is a dark nebula in the constellation Perseus. It belongs to the Perseus molecular cloud complex.

Abell G.O. Abell published The Distribution of Rich Clusters of Galaxies in 1958.

Abell 1 is a distant galaxy cluster in constellation Pegasus.

vdB - van den Bergh S. van den Bergh published A Study of Reflection Nebulae in 1966. It is a comprehensive catalog of galactic reflection nebulae.

vdB 1 is a reflection nebula in the constellation Cassiopeia.