Contents within planetarium

• 125 nebulae
• 20 reflection nebulae
• 9 hII regions
• 1 open cluster
• 1 duplicate

Overlap with other object catalogs

• 30 Lynds' catalogue of bright nebulae
• 20 New General Catalogue (NGC)
• 18 Index Catalogue (IC)
• 6 Sharpless catalog
• 3 Collinder catalog
• 2 Caldwell objects
• 1 Messier objects

Reference

• https://cdsarc.cds.unistra.fr/viz-bin/cat/VII/21

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