Donati's comet, 1858.
© Science Museum / Science & Society Picture Library
Frontispiece showing Donati's comet as seen over St Paul's Cathedral and the River Thames in London in 1858. Italian astronomer Giambattista Donati (1826-1873) observed and recorded the first appearance of this comet in June 1858. Donati's comet was also the first to be photographed. Illustration from 'Sun, moon, and stars: a book for beginners' by Agnes Giberne, published in London in 1881.