Disclosed

Basel celestial phenomena

Date
7 Aug 1566
Place
Basel, Switzerland
Record
Curated case
Assessment
Contested
Evidence strength
467 case pages by decade; this one falls in Before 1900 with 4 othersAll cases

What was reported

A broadsheet by Samuel Coccius, printed by Samuel Apiarius, reports three sky events seen by many people in Basel: an unusual red sunset on 27 July 1566, a total lunar eclipse followed by a blood-red sunrise on 28 July, and on the morning of 7 August many large black and fiery spheres before the sun that seemed to move against each other and then fade. The broadsheet, written as a religious warning, is the only record. The first two events fit a lunar eclipse and atmospheric reddening; the spheres of 7 August have no agreed explanation, with sun-related optical effects the usual suggestion.

What officials concluded

No conclusion stated

No official explanation has been given.

Strongest ordinary reading

The July events fit a lunar eclipse and a reddened sky; the August spheres are usually read as solar optical effects, not established

Evidence profile

Sensors1 of 9
  • No: Visual
  • No: Infrared
  • No: Radar
  • No: Video
  • No: Photo
  • No: Film
  • No: Audio
  • No: Night vision
  • No: Other sensor
  • Yes: Rendering
Witnessescount not stated
  • Yes: Civilian
  • No: Military aircrew
  • No: Military ground
  • No: Airline crew
  • No: Sensor operator
  • No: Law enforcement
  • No: Scientist
  • No: Astronaut
  • No: Intelligence official
  • No: Other
ShapeOrb or sphere
  • No: Light only
  • Yes: Orb or sphere
  • No: Disc
  • No: Triangle
  • No: Cylinder
  • No: Cube
  • No: Other shape
Effectsnone reported
  • No: Physiological
  • No: Physical trace
  • No: Electromagnetic
  • No: Sound
  • No: Silent

Outside sources

On the map

47.56° N, 7.59° E, plotted at the town or city

Show on the map