Norman Robert Pogson
| Discovered asteroid : 8 | |
|---|---|
| Isis | May 23, 1856 |
| Ariadne | April 15, 1857 |
| Hestia | August 16, 1857 |
| Asia | April 17, 1861 |
| Sappho | May 2, 1864 |
| Sylvia | May 16, 1866 |
| Camilla | November 17, 1868 |
| Vera | February 6, 1885 |
Norman Robert Pogson (born March 23, 1829 in Nottingham , † June 23, 1891 ) was an English astronomer .
Pogson became an assistant at the Radcliffe Observatory in Oxford in 1851 . From 1858 he was director of the Hartwell Hall Observatory in Buckingham . From 1861 he was director of the Observatory of Madras in India .
Pogson discovered 8 asteroids (see list of asteroids ) and 21 variable stars and created an extensive catalog of stars. He standardized the brightness scale of the stars by putting the system of size classes already introduced by Hipparchus into a logarithmic relationship. According to this, a bright star of the 1st magnitude is one hundred times brighter than a star of the 6th magnitude, which can barely be seen with the naked eye under good visibility conditions.
In honor of Pogson, a 50 km lunar crater and the asteroid (1830) Pogson was named after him.
Web links
- Portrait of NR Pogson in the Science Photo Library
- Publications by NR Pogson in the Astrophysics Data System
- JLED: Obituary: Pogson, NR Monthly Notices of the Royal Astronomical Society, Vol. 52 (1892), p. 235 bibcode : 1892MNRAS..52..235. (English)
- Reddy, V., Snedegar, K., Balasubramanian, RK: Scaling the magnitude: the fall and rise of NR Pogson Journal of the British Astronomical Association, vol. 117 (2007), no. 5, pp. 237–245 ( bibcode : 2007JBAA..117..237R ) (biography, English)
| personal data | |
|---|---|
| SURNAME | Pogson, Norman Robert |
| BRIEF DESCRIPTION | English astronomer |
| DATE OF BIRTH | March 23, 1829 |
| PLACE OF BIRTH | Nottingham |
| DATE OF DEATH | June 23, 1891 |