Index Catalog

Index Catalog

(IC) See NGC.

index catalog

[′in‚deks ‚kad·əl‚äg]
(astronomy)
A supplement to the New General Catalog of nebulae.
References in periodicals archive ?
The World Giving Index catalogs data on philanthropy by countries and measures philanthropy around the globe.
These are drawn from not only the New General and Index catalogs (NGC and IC) but also more obscure sources such as the Uppsala General Catalogue (UGC), European Southern Observatory (ESO), and Morphological Catalogue of Galaxies (MCG).