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Clarence Augustus Chant (May 31, 1865 – November 18, 1956) was a
Canadian Canadians (french: Canadiens) are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of ...
astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, g ...
and
physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate caus ...
.


Early life and education

Chant was born in
Hagerman's Corners, Ontario Hagerman's Corners is a dispersed rural community in Markham, Ontario, Canada. Located at 14th Avenue and Kennedy Road, the former farm lands have disappeared and given way to homes and commercial parks. It is geographically located between the co ...
to Christopher Chant and Elizabeth Croft. In 1882 he attended Markham High School, where he demonstrated a mathematical ability. After graduation, he attended St. Catherines Collegiate Institute and York County Model School in
Toronto Toronto ( ; or ) is the capital city of the Canadian province of Ontario. With a recorded population of 2,794,356 in 2021, it is the most populous city in Canada and the fourth most populous city in North America. The city is the ancho ...
. He left to work as an instructor in 1884, and taught at Maxwell, Osprey Township for the following three years. By 1887 he began studying
mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
and
physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...
at the University College of the
University of Toronto The University of Toronto (UToronto or U of T) is a public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution ...
, graduating in 1890.


Career

Upon graduation, Chant became a civil servant in
Ottawa Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core ...
, working as a temporary clerk in the office of the Auditor General. The job offered limited prospects; however, in 1891 he was offered a fellowship at University of Toronto, where he gained an appointment as a lecturer of physics the following year. While working at the university he became interested in
astronomy Astronomy () is a natural science that studies astronomical object, celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and chronology of the Universe, evolution. Objects of interest ...
, and in 1892 he joined what would become the
Royal Astronomical Society of Canada Royal may refer to: People * Royal (name), a list of people with either the surname or given name * A member of a royal family Places United States * Royal, Arkansas, an unincorporated community * Royal, Illinois, a village * Royal, Iowa, a ci ...
. He served as president of the organization from 1904 until 1907, and also performed editing duties for the society's journal until 1956. He also contributed articles to the journal and the annual ''Observer's Handbook''. In 1894 he married Jean Laidlaw, and the couple had two daughters and a son. He earned his master's degree in 1900, and was granted a leave of absence to study for a Doctorate at
Harvard University Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher le ...
. He returned to Toronto with his Ph.D. in 1901 became a professor. In 1905 he introduced optical astronomy courses at the
University of Toronto The University of Toronto (UToronto or U of T) is a public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution ...
, and was the sole astronomer at the university until 1924. In 1913 he researched and wrote a paper for the Royal Astronomical Society of Canada about an unusual event, a meteor procession, that took place that year. He lobbied the city of
Toronto Toronto ( ; or ) is the capital city of the Canadian province of Ontario. With a recorded population of 2,794,356 in 2021, it is the most populous city in Canada and the fourth most populous city in North America. The city is the ancho ...
for an observatory, but the project was shelved with the advent of
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
. During his career he joined five expeditions to observe solar eclipses, including the 1922 expedition that tested Einstein's theory that light could be deflected by a massive body. He performed early investigations into
X-ray An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10  picometers to 10  nanometers, corresponding to frequencies in the range 30&nb ...
photography. In 1928 he published the book ''Our Wonderful Universe''. Chant worked with mining executive and amateur astronomer
David Alexander Dunlap David Alexander Dunlap (October 13, 1863 − October 29, 1924) was a Canadian lawyer, mining company executive and philanthropist. He and his partners acquired an Ontario silver mine called LaRose, which was the basis of the great fortune he came ...
to promote and develop plans for a world-class observatory for Canada. After Dunlap's death, his widow donated land for the observatory and provided financial backing for the project. In 1935 Chant's goal was achieved with the opening of the
David Dunlap Observatory The David Dunlap Observatory (DDO) is an astronomical observatory site in Richmond Hill, Ontario, Canada. Established in 1935, it was owned and operated by the University of Toronto until 2008. It was then acquired by the city of Richmond Hill, ...
. He retired from the university when the observatory opened, and moved into the Observatory House, Richmond Hill. He died at 91 years of age during the
November 1956 lunar eclipse A total lunar eclipse took place on Sunday, November 18, 1956. Visibility Related lunar eclipses Lunar year series Tritos series Half-Saros cycle A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a ...
while still residing at the Observatory House.


Awards and honors

* Asteroid 3315 Chant is named after him. * The crater
Chant A chant (from French ', from Latin ', "to sing") is the iterative speaking or singing of words or sounds, often primarily on one or two main pitches called reciting tones. Chants may range from a simple melody involving a limited set of notes ...
on the
Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
is named after him.


References

*


External links


Clarence Augustus Chant archival papers
held at th
University of Toronto Archives and Records Management Services
{{DEFAULTSORT:Chant, Clarence Augustus Higher education in Canada Organizations established in 1922 1865 births 1956 deaths University of Toronto alumni Harvard University alumni 20th-century Canadian astronomers 19th-century Canadian astronomers Presidents of the Royal Astronomical Society of Canada