Indeksni katalog

Indeksni katalog (engleski: Index Catalogue of Nebulae and Clusters of Stars, skraćeno IC, Indeksni katalog maglina i nakupina zvijezda) jest prvo veliko ažuriranje Novog općeg kataloga i predstavlja spisak objekata iz svemira koji je sastavio astronom John L. E. Dreyer krajem 19. i početkom 20. stoljeća.

Indeksni katalog služi kao dodatak NGC-u i sadrži dodatnih 5.386 objekata, zajednički poznatih kao IC objekti. Godine 1895. objavljen je IC I koji sadrži 1.520 objekata^[1] i 1908. IC II,^[2] koji sadrži 3.866 objekata.

NGC i IC katalozi zajedno sadrže 13 226 objekata svemira.^[3]

Astronomski katalozi

Reference

^ Dreyer, J. L. E. (1895). "Index Catalogue of Nebulae found in the years 1888 to 1894, with Notes and Corrections to the New General Catalogue". Memoirs of the Royal Astronomical Society. 51: 185–228. Bibcode:1895MmRAS..51..185D.
^ Dreyer, J. L. E. (1910). "Second Index Catalogue of Nebulae and Clusters of Stars; containing objects found in the years 1895 to 1907, with Notes and Corrections to the New General Catalogue and to the Index Catalogue for 1888–94" (PDF). Memoirs of the Royal Astronomical Society. 59: 105–198. Bibcode:1910MmRAS..59..105D.
^ Wolfgang Steinicke: Revised New General and Index Catalogue (pristupljeno 13. svibnja 2017.)

[1] Dreyer, J. L. E. (1895). "Index Catalogue of Nebulae found in the years 1888 to 1894, with Notes and Corrections to the New General Catalogue". Memoirs of the Royal Astronomical Society. 51: 185–228. Bibcode:1895MmRAS..51..185D.

[2] Dreyer, J. L. E. (1910). "Second Index Catalogue of Nebulae and Clusters of Stars; containing objects found in the years 1895 to 1907, with Notes and Corrections to the New General Catalogue and to the Index Catalogue for 1888–94" (PDF). Memoirs of the Royal Astronomical Society. 59: 105–198. Bibcode:1910MmRAS..59..105D.

[steinicke:_steps-3] Wolfgang Steinicke: Revised New General and Index Catalogue (pristupljeno 13. svibnja 2017.)

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