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ikwilliamson

Isabel Williamson

WMacDonald's picture

(1907-2000) An active member of the Montreal Centre and the driving force behind the observing programs there from the 1940s through the 1960s.

Description: 
Williamson, Isabel K.
Type: 
Person

Letter 19600626

WMacDonald's picture
tn_ikwletter19600626.jpg

This is a transcription of the letter:

IKW June 26 [1960]

Dear Ruth,

Here are the prints you selected from our Annual Meeting collection. I relied on the list of numbers Mr. MacLennan gave me and hope I haven't made any mistakes. Also enclosed is duplicate of a slide of Dr. McKellar, taken by Constantine [Papacosmos], which we thought was exceptionally good.

Year: 
1960
Pages: 
2

GA 1960 #8

GA 1960 #8

L to R: Isabel Williamson, Vern Ramsay, Constantine Papacosmas, Geoff Gaherty, David Stills.

Jupiter 195907280230

Jupiter 195907280230

Jupiter on 1959 July 27/28 at 22:30 EDT (02:30 UT) as sketched by I.K. Williamson. C.M.(1) 10°, C.M.(2) 342°. 80mm refractor at 173x. Seeing 3. Transparency 3.

Jupiter 195907140330

Jupiter 195907140330

Jupiter on 1959 July 13/14 at 23:30 EDT (03:30 UT) as sketched by I.K. Williamson. C.M.(1) 357°, C.M.(2) 75°. 80mm refractor at 173x. Seeing 3. Transparency 3.

Jupiter 195907080200

Jupiter 195907080200

Jupiter on 1959 July 7/8 at 22:00 EDT (02:00 UT) as sketched by I.K. Williamson. C.M.(1) 75°, C.M.(2) 200°. 80mm refractor at 173x. Seeing 2. Transparency 2. Suggestions of ripples in SEB. Definite dark areas in NEB but only visible for fleeting instances due to poor seeing.

Jupiter 195907040245

Jupiter 195907040245

Jupiter on 1959 July 3/4 at 22:45 EDT (02:45 UT) as sketched by I.K. Williamson. C.M.(1) 191°, C.M.(2) 346°. 80mm telescope at 173x. Seeing 4. Transparency 3.

Jupiter 195906110310

Jupiter 195906110310

Jupiter on 1959 June 10/11 at 23:10 EDT (03:10 UT) as sketched by I.K. Williamson. C.M.(1) 174°, C.M.(2) 144°. 6½" refractor at 222x. Seeing 3. Transparency 2. Humps in N.E.B. quite pronounced.

Jupiter 195905170300b

Jupiter 195905170300b

Jupiter on 1959 May 16/17 at 23:00 EDT (03:00 UT) as sketched by I.K. Williamson. C.M.(1) 178°, C.M.(2) 339°. 6½" refractor at 100x. Seeing 4. Transparency 3.

Mars 196101050400

Mars 196101050400

Mars on 1961 January 4/5 at 23:00 local time (04:00 UT) as sketched by I.K. Williamson. C.M. 281°. 6" refractor at 220x. Seeing 4. Transparency 3. T = 1°.

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