1961

Venus 196101122130

Venus on 1961 January 12/13 at 16:30-16:50 local time (21:30-21:50 UT) as sketched by K.R. Brasch. 8" reflector at 165x-300x. Seeing 3-5. Transparency 3-4. Almost nothing seen without filter, only fairly definite area 8.5. Glare of planet seems to blot out detail which becomes visible only with filters. Terminator not quite central.

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Venus 196101112110

Venus on 1961 January 11/12 at 16:10-16:40 local time (21:10-21:40 UT) as sketched by K.R. Brasch. 8" reflector at 165x. Seeing 4-5. Transparency 0-3. Intermittent clouds, haze + wind hampered observation. Markings fairly definite but outline very indefinite. Not much difference caused by filter except for increase in contrast.

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Venus 196101092125

Venus on 1961 January 9/10 at 16:25-16:45 local time (21:25-21:45 UT) as sketched by K.R. Brasch. 8" reflector at 165x. Seeing 0-3. Transparency 5. Disk of planet unusually bright with only slightly less intense area marked 9.5, otherwise featureless without filter.

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Venus 196101052200

Venus on 1961 January 5/6 at 16:55-17:05 local time (22:00 UT) as sketched by Geoffrey Gaherty, Jr. 8" Cave reflector at 180x. Seeing 3. Transparency 2-1. Transparency deteriorated at end of drawing making intensity estimates impossible.

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Venus 196101032130

Venus on 1961 January 3/4 at 16:30-17:05 local time (21:30-22:05 UT) as sketched by K.R. Brasch. 8" reflector at 165x-300x. Seeing 4-6. Transparency 3. Dusky shadings extremely indefinite + washed out; only definite area was white patch in SW, brightest area on disk 9.5. Despite good seeings + filter, markings were more to difficult to see than on other occasions.

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Venus 196101022150

Venus on 1961 January 2/3 at 16:50-17:20 local time (21:50-22:20 UT) as sketched by K.R. Brasch. 8" reflector at 165x-300x. Seeing 4-6. Transparency 4-2. Occasional hazy clouds moved over planet causing very good seeing + a beautiful view. Detail very indefinite even with V filter + good seeing. Neither cusp region prominent as whole disk appeared uniformly dusky. Terminator very close to centre.

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Mars 196101282220

Mars on 1961 January 28/29 at 17:20-17:40 local time (20:20-20:40 UT) as sketched by K.R. Brasch. 8" reflector at 375x. Seeing 2-5. Transparency 2-3. C.M. 348°. Detail very definite during very short periods of fine seeing. Interfering cloud ended observation shortly. T = -1°.

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Mars 196102090203

Mars on 1961 February 8/9 at 21:03-21:13 local time (2:03-2:13 UT) as sketched by Kenneth Chalk. C.M. 301°. 6" refractor at 220x. Seeing 4/10. Transparency 3/5. T = -1°.

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Mars 196101052310

Mars on 1961 February 5 at 18:00-18:30 local time (23:10-23:30 UT) as sketched by K.R. Brasch. C.M. 296°. 8" reflector at 375x. Seeing 4-5/10. Transparency 4-5/5. T = -1°.

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Mars 196102130300

Mars on 1961 February 12/13 at 22:00-22:10 local time (03:00-03:10 UT) as sketched by G. Wedge. C.M. 289°. 6" refractor 220x. Seeing 4/10. Transparency 5/5. T = -1°.

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