Módulo 1 - Galáxias: Propriedades Gerais

New General Catalogue of Nebulae and Clusters of Stars – J.L.E. Dreyer
(1888) – As galáxias levam o prefixo NGC.
Ex.: Andrômeda = NGC 224
Index Catalogue of Nebulae Found in the Years 1888 to 1894, (Dreyer
1895) (IC I);
Second Index Catalogue of Nebulae Found in the Years 1895 to 1907,
(Dreyer 1908) (IC II). As galáxias recebem o prefixo IC.
Ex.: IC 11 = NGC 281
ATENÇÃO : Tanto o NGC como o IC catalogam nebulosas galácticas.
Links para páginas com objetos NGC e IC
http://www.seds.org/messier/xtra/ngc/ngc.html
http://www.ngcic.com/ngciccat.html
J.L.E. Dreyer, 1888. New General Catalogue of Nebulae and Clusters of Stars. Mem. Roy. Astron.
Soc. 49, Part I (reprinted 1953, London: Royal Astronomical Society).
J.L.E. Dreyer, 1895. Index Catalogue of Nebulae Found in the Years 1888 to 1894, with Notes and
Corrections to the New General Catalogue. Mem. Roy. Astron. Soc. 51, 185 (reprinted 1953, London:
Royal Astronomical Society).
J.L.E. Dreyer, 1908. Second Index Catalogue of Nebulae Found in the Years 1895 to 1907; with
Notes and Corrections to the New General Catalogue and to the Index Catalogue for 1888 to 1894.
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Mem. Roy. Astron. Soc. 59, Part 2, 105 (reprinted 1953, London: Royal Astronomical Society).