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John Stanley Plaskett

Born near Woodstock, Ontario, Plaskett began the first programs of astrophysical research in Canada at the Dominion Observatory, Ottawa, in 1905. He urged creation of the Dominion Astrophysical Observatory, designed its principal instruments, and became its first director in 1917. With this 1.85 metre telescope, he made observations of stellar motions fundamental to the first measurement of the rotation of our galaxy, demonstrated that interstellar clouds are fairly uniformly distributed through space and discovered the binary nature of the massive star that bears his name. These studies earned him international recognition. He died in Esquimalt.

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John Stanley Plaskett

Né près de Woodstock (Ontario), Plaskett fit les premières recherches canadiennes en astrophysique à l’Observatoire fédéral d’Ottawa en 1905. Il préconisa ensuite la création d’un observatoire fédéral en astrophysique, dont il désigna les principaux instruments. Il en devint le premier directeur en 1917. Avec ce télescope de 1.85 mètre, il fit des observations essentielles au mesurage de la rotation de notre galaxie. Il démontra aussi la distribution égale des nuages interstellaires et découvrit la forme binaire de l’étoile massive qui porte son nom. Ces recherches lui mérita une renommée internationale. Il mourut à Esquimalt.

Location: 5071 West Saanich Road
Emplacement : 5071, chemin West Saanich
Coordinates · Coordonnées: 48.519771, -123.418447
Source: Parks Canada – Historic Sites and Monuments Board of Canada commemorative plaques (Directory of Federal Heritage Designations)
Licence · Permission: Contains information licensed under the Open Government Licence – Canada
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