AGFA photographic plates, 1880
Charon in true color, imaged by New Horizons
Mimosa Panchroma-Studio-Antihalo Panchromatic glass plates, 9 x 12cm, Mimosa A.-G. Dresden
Charon's discovery at the Naval Observatory Flagstaff Station as a time-varying bulge on the image of Pluto (seen near the top at left, but absent on the right). Negative image.
Negative plate
Charon is named after Charon, the ferryman of the dead in Greek mythology, shown in this nineteenth-century painting by Alexander Litovchenko
Image resulting from a glass plate negative showing Devil's Cascade in 1900.
A simulated view of the Pluto–Charon system showing that Pluto orbits a point outside itself. Also visible is the mutual tidal locking between the two bodies.
Size comparisons: Earth, the Moon, and Charon
The two conflicting theories about Charon's internal structure
Charon in enhanced color to bring out differences in surface composition, showing the so-called Mordor Macula at the top
Organa, the youngest crater of Charon.
Mosaic of best-resolution images of Charon from different angles

On June 22, 1978, he had been examining highly magnified images of Pluto on photographic plates taken with the telescope two months prior.

- Charon (moon)

Pluto was discovered using photographic plates in a blink comparator; its moon Charon was discovered 48 years later in 1978 by U.S. Naval Observatory astronomer James W. Christy by carefully examining a bulge in Pluto's image on a photographic plate.

- Photographic plate
AGFA photographic plates, 1880

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