On 12 August 1883, photographs were taken by astronomer Jose A y Bonilla at the Zacatecas Observatory in Mexico of objects crossing the face of the Sun.
In 1885, the French publication “L’Astronomie” published an observation by Jose A y Bonilla, the director of the Zacatecas Observatory in Mexico, northwest of Mexico City. Bonilla’s account included the following:
“On August 12, 1883 at 8am, I was starting to outline the solar spots when all of a sudden I caught sight of a small luminous body, which was entering the scope of the telescope, standing out on the paper I used to reproduce the spots, and wandering over the solar disc, projecting itself like a shadow almost circular.”
“I had hardly recovered from my surprise when the same phenomenon happened again and at such short intervals that within 2h. I was able to count up to 283 bodies crossing the solar disc.”
Bonilla took several photographs which he sent to “L’Astronomie”.
Several researchers have referred to these photographs as “the first UFO photographs”. [ref]Isaack Koi: 1883.0812 Bonilla photos[/ref]