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CA-K569History

John Stanley Plaskett and the Dominion Astrophysical Observatory

John Stanley Plaskett, 1917.
John Stanley Plaskett, 1917. JohnStanleyPlaskett · Unknown author · Photo source · Photo licence: Public domain. Resized for display; item previews may be cropped. The image remains under the licence shown.
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John Stanley Plaskett began Canada’s first astrophysical research at the Dominion Observatory in Ottawa in 1905, then urged the creation of the Dominion Astrophysical Observatory near Victoria, designed its main instruments and became its first director in 1917. With its 1.85-metre telescope he observed stellar motions fundamental to the first measurement of our galaxy’s rotation.

Scope & context

Plaskett as described in his designation.

Sources behind this record

1
John Stanley Plaskett National Historic Person ↗

Parks Canada (Directory of Federal Heritage Designations)

Importance; plaque text