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1950s

RASC Brochure

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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.

Year: 
1958
Pages: 
2

11 February 1958 Synoptic Auroral Map

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Great Red Aurora Map 1958

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.

Year: 
1958
Pages: 
3

Kuiper Public Lecture at AAS Toronto Meeting 1959

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Invitation to Toronto Kuiper Public Lecture 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.

Year: 
1959
Pages: 
1

HQ Fundraising

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Year: 
1955
Pages: 
6

At-Home Invitation

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Year: 
1957
Pages: 
1

At-Home Invitation

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Year: 
1953
Pages: 
1

At-Home Invitation

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Year: 
1951
Pages: 
1

Sky Facts #11

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Year: 
1956
Number: 
11
Pages: 
4
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