John Heard

(1907-76) Director of the David Dunlap Observatory (1951-65), RASC President (1953-54).

Continue Reading

Clarence Chant

(1865-1956) Professor of Astronomy at University of Toronto, President of the Society (1904-07), editor of the Journal and Handbook for 50 years, and an important figure in the creation of the David Dunlap Observatory.

Continue Reading

Malcolm Thomson

(1908-2002) RASC National President (1966-1968) during Canada's Centenary, Chief of the Positional Astronomy and Time Service (1957-1966), and Chief of the Astronomy Division (1966-1970) at the Dominion Observatory. When the DO closed, he became head of the NRC's Time and Frequency Section of the Physics Division (for more information, see http://adsabs.harvard.edu/abs/2002BAAS...34.1385H.) —RAR

Continue Reading

Bert Topham

(1893-1962) Bert Topham (Toronto Centre) was a prominent observer of his day, and the first recipient of the Society's Chant Medal.

Continue Reading

Castlefield Observatory

(1938-62) Bert Topham's observatory at 1250 Castlefield Ave., Toronto.

Continue Reading

The Poor Man's Telescope

F.W. Henshaw and F.T. Matthews

A series of articles first appearing in THE MONITOR under the feature column of the Montreal Centre — "Observatory Activities."

Note: The actual year of publication is not known.

Continue Reading

Members 1958

Continue Reading

RASC Brochure



THE ROYAL ASTRONOMICAL SOCIETY OF CANADA The Royal Astronomical Society of Canada is an organization devoted to the advancement of astronomy and allied sciences. Membership in the Society is open to anvone in the world interested in astronomy. Most of the professional astronomers in Canada are members, but amateurs contribute largely to the total membership.

Continue Reading

11 February 1958 Synoptic Auroral Map

By early 1958, under the auspices of the International Geophysical Year, the National Research Council had compiled a list of amateur contributors to an auroral research program. The period of maximum solar activity in an 11-year cycle had peaked in late 1957, and Helen Sawyer Hogg reported in her Toronto Star column of June 7th, 1958 that the relative sunspot number for December 24th and 25th was 355. This was the highest value ever observed, exceeding the value of 353 on May 17th 1778.

Continue Reading

Kuiper Public Lecture at AAS Toronto Meeting 1959

At the invitation of Dr. John F. Heard, Director of the David Dunlap Observatory, the 103rd Meeting of the American Astronomical Society (AAS) was held at the University of Toronto, August 30th - September 3rd, 1959. The AAS had not met in Toronto since 1935, the year the Dunlap Observatory was completed. The meeting was the biggest in the AAS's history being attended by approximately two hundred astronomers together with their families and guests.

Continue Reading


Subscribe to RSS - 1950s