UFOMYST
CaseTriangle1977

Ann Arbor, MI, USA

Ufo in long cloud moving through sky

Report quality: Moderate48/100

This score reflects report-quality signals on file — how complete, corroborated, and precisely located the report is — not a claim about whether the sighting was a real craft.

  • Duration parsed: 1800s, a plausible sighting length
  • Brief witness text (36 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
1977-07-15
Where
Ann Arbor, MI, USA
Shape
Triangle
Duration
Half an hour
Geo
42.278, -83.741 · exact
Slug
triangle-over-ann-arbor-mi-1977-633a3a
Wave

Part of a wave

  • Historical wave1977–1978

    Colares & Operação Prato

    Ilha de Colares and the Baixo Amazonas, Pará, Brazil

    The most physically aggressive wave on record. Luminous objects — locals called them 'chupa-chupa' (sucker-sucker) — descended nightly over fishing villages, projecting beams that left burns, puncture marks, anemia and…

    Open wave →

In context

  • One of 47 documented reports from Ann Arbor, MI in the UFOMYST archive.
  • Michigan logged 12 sightings in 1977.
  • Triangle sightings ran at 7.9% during the 1970s (archive average: 9%).

Report

Full narrative lands with dossier import for famous cases, or the NUFORC free-text summary above for standard reports. This shell is SSR-ready: one D1 row (including connections_json) per page.