This image is not available for purchase in your country.

Portrait of the British astronomer Norman Pogson

Portrait of the British astronomer Norman Pogson

H416/0237

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Norman Pogson. Portrait of the British astronomer Norman Robert Pogson (1829-91). He was an assistant at the Radcliffe Observatory in Oxford, England, and by 1860 was government astronomer at Madras, India. There he devised Pogson's ratio to define stellar magnitudes. For example first magnitude stars are slightly more than 2.5 times brighter than second magnitude stars and so on. This magnitude scale is still used today.

Release details

Model release not available. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}