Comets

Glass plate AI24618. This glass plate is a negative, meaning the image is a reverse of the night sky. Markings on the glass track the comet's trajectory.

Glass plate AI32380 measures 8 inches by 10 inches. This glass plate is a negative, meaning the image is a reverse of the night sky. Markings on the glass track the comet's trajectory.

Plate AX01958. A glass plate positive image showing stars and a thin streak of light, a comet, shown at the top center of the image.

AX02501

Glass plate B41215 shows Halleys Comet in 1910. This is a glass plate negative, meaning Halley's Comet appears as a dark streak across the light sky.

B41215, Halleys Comet, 1910

Glass plate B41215 shows Halleys Comet in 1910. This is a glass plate positive, meaning Halley's Comet appears as a bright white streak across the dark sky.

B41215, Halleys Comet, 1910

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