| 词条 | Bonilla observation |
| 释义 |
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.[1] He was able to take several photographs, exposing wet plates at 1/100 second. These represent the earliest photos of an unidentified flying object.[2] It was later suggested that the objects were high-flying geese,{{citation needed|date=July 2015}} while some ufological literature interpreted the objects as either alien spacecraft or an unsolved mystery.{{citation needed|date=July 2015}} In 2011, researchers from the National Autonomous University of Mexico suggested that the unidentified objects may have been fragments of a billion-ton comet passing within a few hundred kilometers of Earth.[3][4] References1. ^{{cite journal|last=Bonilla|first=José|title=Passage Sur Le Disque Solaire|journal=L'Astronomie|date=1 January 1886|volume=IV|pages=347–350|url=https://books.google.com/books?id=Vt1NAAAAMAAJ&pg=PA347#v=onepage&q&f=false|editor1-first=Camille|editor1-last=Flammarion|location=Paris|language=French}} {{UFOs}}{{Comets|nonobject=yes}}{{DEFAULTSORT:Bonilla Observation}}2. ^{{cite book|last=Nickell|first=Joe|title=Camera Clues: A Handbook for Photographic Investigation |publisher=University Press of Kentucky|year=2005|isbn= 9780813191249|url=https://books.google.com/books?id=MoWjYepnAJoC&lpg=PA161&dq=%22Jose%20Bonilla%22%20UFO&pg=PA161#v=onepage&q=%22Jose%20Bonilla%22%20UFO&f=false|accessdate=April 8, 2005}} 3. ^{{cite web |title=Billion-Ton Comet May Have Missed Earth by a Few Hundred Kilometers in 1883 |url=http://www.technologyreview.com/blog/arxiv/27264/ |work=MIT Technology Review |publisher= |author= |date=17 October 2011 |accessdate=19 October 2011}} 4. ^{{cite web |title=Did a massive comet almost wipe out humans in 1883? |url=https://news.yahoo.com/did-massive-comet-almost-wipe-humans-1883-112600864.html |work=The Week via Yahoo! News |author=The Week's Editorial Staff |date=18 October 2011 |accessdate=19 October 2011}} 4 : UFO sightings|Comets|1883 in Mexico|Zacatecas |
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