Disambiguation evidence for Messier 20 via surface form

"M20 (Trifid Nebula)"

Triples (1)

Triples where some other subject referred to this entity as "M20 (Trifid Nebula)".

Sagittarius Arm → contains →
"M20 (Trifid Nebula)"
↳ resolves to Messier 20
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