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Harry Hemley Plaskett

1893 – 1980

Canadian astronomer

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About Harry Hemley Plaskett

Lived 1893 – 1980 (aged 86). Harry Hemley Plaskett was a Canadian astronomer, astrophysicist and university teacher.

Harry Hemley Plaskett FRS (July 5, 1893 – January 26, 1980) was a Canadian astronomer who made significant contributions to the fields of solar physics, astronomical spectroscopy and spectrophotometry. From 1932 to 1960, he served as the Savilian Professor of Astronomy at the University of Oxford, and in 1963 was awarded the Gold Medal of the Royal Astronomical Society.

Life Harry Hemley Plaskett was born in Toronto, Ontario on July 5, 1893. His parents were Rebecca Hemley and John Stanley Plaskett, who at the time was working as a machinist in the Department of Physics at the University of Toronto, but who would later go on to become the first director of the Dominion Astrophysical Observatory in Victoria, and a Gold Medal winner in his own right.

After receiving his B.A. from Toronto in 1916, he joined the Canadian Corps, serving in the field artillery in France from 1917-1918. He was president of the Royal Astronomical Society just after World War II.

His time at Oxford was interrupted by war service: from 1939 to 1940, he was an anti-aircraft officer, and from 1940 to 1944 he worked on experimental navigation for the Ministry of Aircraft Production.

He retired from Oxford in 1960, becoming a Professor Emeritus of the university, but remained active in astronomical research almost until the end of his life.

Family

He had married in 1921 Edith Alice Smith, with whom he had two children, Barbara and John Stanley. They were to remain married until his death in 1980.

Honors The asteroid 2905 Plaskett, discovered by Edward Bowell in 1982, was named in his and his father's memory.

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Important facts

Birth century
Nationality
Education
University of Toronto
Positions held
President of the Royal Astronomical Society
Employers
Harvard University, University of Oxford
Awards
Fellow of the Royal Society; Gold Medal of the Royal Astronomical Society; Fellow of the American Physical Society

People in Harry Hemley Plaskett's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Harry Hemley Plaskett's

Frequently asked questions

Who was Harry Hemley Plaskett?

Canadian astronomer (1893-1980)

When was Harry Hemley Plaskett born?

Harry Hemley Plaskett was born on 5 July 1893 in Toronto.

When did Harry Hemley Plaskett die?

Harry Hemley Plaskett died on 26 January 1980.

What was Harry Hemley Plaskett's occupation?

Harry Hemley Plaskett was an astronomer, astrophysicist and university teacher.

What nationality was Harry Hemley Plaskett?

Harry Hemley Plaskett was Canadian.

Sources & further reading

· Wikipedia: Harry Hemley Plaskett

· Wikidata: Q1384391

· DBpedia: Harry Hemley Plaskett

Cite this page

APA: Biography.guide. (2026). Harry Hemley Plaskett. https://biography.guide/harry-hemley-plaskett/

MLA: "Harry Hemley Plaskett." Biography.guide, https://biography.guide/harry-hemley-plaskett/.

Chicago: "Harry Hemley Plaskett." Biography.guide. https://biography.guide/harry-hemley-plaskett/.

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