thingsaurus
This is a 'thesaurus for things' or similarity engine: results show things that have something in common with what you enter. The more stars, the more things in common! You can use it for research, recommendations or simply to explore ideas and related subjects.
Here are your results for NGC 6781...
Stars indicate closer matches.
Abell 48 
- Abell 70
- Hen 2-428
- NGC 6741
- NGC 6751
- NGC 6778
- NGC 6790
- Planetary nebula
- List of planetary nebulae
- Abell 7
- Abell 12
- Abell 13
- Abell 31
- Abell 33
- Abell 36
- Abell 39
- Abell 63
- Abell 78
- Abell Catalog of Planetary Nebulae
- Cat's Eye Nebula
- Cometary knot
- Dumbbell Nebula
- Engraved Hourglass Nebula
- Eskimo Nebula
- Fast Low-Ionization Emission Region
- Fleming 1
- Helix Nebula
- Hen 2-47
- Hen 2-131
- Hen 2-437
- IC 289
- IC 418
- IC 1295
- IC 2149
- IC 2448
- IC 4406
- IC 4997
- IC 5148
- IRAS 17423-1755
- Jones-Emberson 1
- K 1-2
- KjPn 8
- Kronberger 61
- Little Dumbbell Nebula
- Little Ghost Nebula
- LoTr 5
- M 1-42
- M1-63 nebula
- M1-67
- M1-92
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