Ralph Allen Sampson
Encyclopedia
Astronomer
An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...
.
He was born in Skull, Co Cork to James Sampson, a Cornish-born metallurgical chemist. The family moved to Liverpool and Sampson attended the Liverpool Institute and then graduated from St. John's College
St John's College, Cambridge
St John's College is a constituent college of the University of Cambridge. The college's alumni include nine Nobel Prize winners, six Prime Ministers, three archbishops, at least two princes, and three Saints....
, Cambridge
Cambridge
The city of Cambridge is a university town and the administrative centre of the county of Cambridgeshire, England. It lies in East Anglia about north of London. Cambridge is at the heart of the high-technology centre known as Silicon Fen – a play on Silicon Valley and the fens surrounding the...
in 1888. In 1891 he was awarded a scholarship to carry out astronomical research at Cambridge University. (He had been a student of astronomer John Couch Adams
John Couch Adams
John Couch Adams was a British mathematician and astronomer. Adams was born in Laneast, near Launceston, Cornwall, and died in Cambridge. The Cornish name Couch is pronounced "cooch"....
, and helped to edit and publish Part I of the second volume of Adams' papers in 1900).
In 1893 he was made Professor of Mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...
at Durham College of Science in Newcastle-on-Tyne and in 1895 was elected Professor of Mathematics at Durham University
Durham University
The University of Durham, commonly known as Durham University, is a university in Durham, England. It was founded by Act of Parliament in 1832 and granted a Royal Charter in 1837...
. In December 1910 he became Astronomer Royal for Scotland
Astronomer Royal for Scotland
Astronomer Royal for Scotland was the title of the director of the Royal Observatory, Edinburgh until 1995. It has since been an honorary title.The following have served as Astronomers Royal for Scotland:* 1834–1844 Thomas Henderson...
(until 1937) and Professor of Astronomy at the University of Edinburgh
University of Edinburgh
The University of Edinburgh, founded in 1583, is a public research university located in Edinburgh, the capital of Scotland, and a UNESCO World Heritage Site. The university is deeply embedded in the fabric of the city, with many of the buildings in the historic Old Town belonging to the university...
. He did pioneering work in measuring the color temperature
Color temperature
Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, and other fields. The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of...
of stars. He did important research into the theory of the motions of Jupiter
Jupiter
Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with mass one-thousandth that of the Sun but is two and a half times the mass of all the other planets in our Solar System combined. Jupiter is classified as a gas giant along with Saturn,...
's four Galilean satellite
Natural satellite
A natural satellite or moon is a celestial body that orbits a planet or smaller body, which is called its primary. The two terms are used synonymously for non-artificial satellites of planets, of dwarf planets, and of minor planets....
s, for which he won the Gold Medal of the Royal Astronomical Society
Gold Medal of the Royal Astronomical Society
-History:In the early years, more than one medal was often awarded in a year, but by 1833 only one medal was being awarded per year. This caused a problem when Neptune was discovered in 1846, because many felt an award should jointly be made to John Couch Adams and Urbain Le Verrier...
in 1928. He served as president of the Royal Astronomical Society
Royal Astronomical Society
The Royal Astronomical Society is a learned society that began as the Astronomical Society of London in 1820 to support astronomical research . It became the Royal Astronomical Society in 1831 on receiving its Royal Charter from William IV...
from 1915 to 1917.
In June 1903 he was elected a Fellow of the Royal Society,
He died in Bath, Somerset. The crater Sampson
Sampson (crater)
Sampson is a relatively tiny lunar impact crater located near the central part of the Mare Imbrium. To the northeast is the crater Landsteiner, and to the southeast lies Timocharis. West of this crater is the Dorsum Grabau, a wrinkle ridge in the mare....
on the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
is named after him.
Obituaries
- MNRAS 100 (1940) 258– 263
- Obs 63 (1940) 105 (one paragraph)