Comets in Camera
On 27 September 1858 an English photographer called William Usherwood obtained the first ever photograph of a comet. He used an f/2.4 portrait lens and a seven second exposure on a collodion photographic plate. The resulting image of Comet 1858 VI Donati showed the bright nucleus and a faint tail and the photographer was sufficiently excited to send a copy to a leading astronomer of the time, Richard Carrington.
KeywordsFocal Length Charge Couple Device Sense Amplifier Fixed Camera Charge Couple Device Detector
Unable to display preview. Download preview PDF.