Contents within planetarium

• 12,877 galaxies
• 7 galaxy pairs
• 3 duplicate catalogue entries
• 1 reflection nebula
• 1 planetary nebula
• 1 hII region
• 1 nebula

Overlap with other object catalogs

• 12,482 Principal Galaxies Catalogue
• 3,085 New General Catalogue (NGC)
• 826 Index Catalogue (IC)
• 322 Markarian galaxies
• 110 Arp's catalog of peculiar galaxies
• 36 Messier objects
• 22 Caldwell objects
• 2 Uppsala General Catalog of galaxies addendum (UGCA)
• 1 Strasbourg-ESO Catalogue of Galactic Planetary Nebulae
• 1 PK planetary nebulae
• 1 Melotte catalog
• 1 Lynds' catalogue of bright nebulae
• 1 Collinder catalog

Reference

• https://cdsarc.u-strasbg.fr/viz-bin/Cat?VII/26D

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