Bonilla observation
FIRST SIGHTING OF UNIDENTIFIED FLYING OBJECTS
Jose Bonilla Observation; José Bonilla Observation
On August 12, 1883, the astronomer José Bonilla reported that he saw more than 300 dark, unidentified objects crossing before the Sun while observing sunspot activity at Zacatecas Observatory in Mexico. He was able to take several photographs, exposing wet plates at 1/100 second.