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socialJul 12r/
Historical caseStructured for retrospective review and comparison against modern sightings.

one of the best UFO sightings in which the Czechoslovak army was involved

UnknownNamed sourcesJul 12, 1987, 12:00 AMVranov, Czech Republic

Witnesses

Unknown

Duration

Unknown

Source material

3

Timeline

3

Source context

Limited context

46

Interesting, but still missing stronger corroboration or harder source material.

Source provenance

r/aliens

Live sighting record 8d1b0a6a-8590-48fb-817f-887e4693ef03.

Using the selected case's real source, media, and context throughout the workspace.

Correlations

Field Intelligence

Moon phase

99% illumination

Full moon — bright sky

Solar window

Sunrise5:01 AM
Sunset8:58 PM
Day length15h 57m

Weather

Open-Meteo
ConditionsClear sky
Temperature58°F
Cloud cover3% · Clear
Wind5 mph

Area activity

Within 2 daysNo sightings within 60 mi

Context notes

Full/near-full moon (99% illumination)

Extracted details

Observed facts

Occurred

Jul 12, 1987, 12:00 AM

Timezone

Central European Time

Location

Vranov, Czech Republic

Witness account

Narrative

The UFO over Vranov, sometimes also called the incident over Vranov, is the most famous and at the same time probably the most serious incident of the observation of an unidentified flying object over Czech territory. This incident took place on July 12, 1987 above the Vranov water reservoir, which was full of visitors. The 51st helicopter regiment was ordered to pursue the object. Lieutenant Jaroslav Špaček mentioned the incident in the book Fifty-first, or the history of the 51st helicopter...

Case progression

Timeline

Encounter windowJul 12, 1987, 12:00 AM

Witnesses place the encounter near Vranov, Czech Republic.

PublishedApr 4, 2026, 10:15 AM

r/aliens carried the report into the source network.

Linked event

Grouped into the UFO over Vranov incident dossier.

Ledger

Source material

media

Cover image

Open

Visual reference carried with the original report.

source

Original report

Open

Direct source material from r/aliens.

telemetry

Environmental pass

Historical atmosphere, astronomy, and nearby infrastructure were resolved for this case.