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John Stanley PlaskettCanadian astronomer
Date of Birth: 17.11.1865
Country:  Canada |
Content:
- John Stanley Plaskett: A Pioneer in Stellar Spectroscopy
- Career in Astronomy
- Contributions to Stellar Spectroscopy
- Notable Discovery: "Plaskett's Star"
- Accolades and Recognition
- Legacy
John Stanley Plaskett: A Pioneer in Stellar Spectroscopy
Early Life and EducationJohn Stanley Plaskett was born on November 17, 1865, in Woodstock, Ontario, Canada. In 1899, he graduated from the University of Toronto, where he worked until 1903.
Career in Astronomy
In 1903, Plaskett joined the Dominion Observatory in Ottawa. In 1918, he became director of the newly established Astrophysical Observatory in Victoria, British Columbia, where he oversaw the installation of an 183-cm reflector. In 1935, he led the installation of the 208-cm McDonald telescope.
Contributions to Stellar Spectroscopy
Plaskett's primary research focus was stellar spectroscopy. He embarked on a long-term program to determine the radial velocities of stars, providing observational support for the hypothesis of the rotation of the Milky Way. He also conducted extensive spectroscopic studies of hot and spectroscopic binary stars.
Notable Discovery: "Plaskett's Star"
In 1922, Plaskett made a significant discovery when he identified a high-mass binary system, which later became known as "Plaskett's Star."
Accolades and Recognition
Plaskett received numerous prestigious awards throughout his career, including the Gold Medal of the Royal Society of London (1930) and the Rumford Medal of the American Academy of Arts and Sciences.
Legacy
John Stanley Plaskett passed away in Victoria, British Columbia, on October 17, 1941. His contributions to stellar spectroscopy and astronomy have left a lasting legacy in the field.
