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Venus 196101162030

Venus 196101162030

Venus on 1961 January 16 at 15:30-16:10 local time (20:30-21:10 UT) as sketched by K.R. Brasch. 8" reflector at 300x-375x. Seeing 2-5. Transparency 4. During best moments considerable definite detail seen, especially with filter.

Venus 196101162140

Venus 196101162140

Venus on 1961 January 16/17 at 16:40 +11m EST (21:40 UT) as sketched by Jim Low. 4" reflector at 167x. Seeing 4. Transparency 4. Phase only a little over half full.

Venus 196101142130

Venus 196101142130

Venus on 1961 January 14/15 at 16:30-17:00 local time (21:30-22:00) as sketched by K.R. Brasch. 8" reflector at 300x. Seeing 3-5. Transparency 4. Most definite view of outline of markings so far experienced, especially with violet filter, blue + green. Parallel band-like markings were very definite. Contrast exaggerated in both drawings.

Venus 196101142007

Venus 196101142007

Venus on 1961 January 14/15 at 15:07 +17m EST (20:07 UT) as sketched by Jim Low. 4" reflector at 167x. Seeing 5. Transparency 4+. This is a daylight observation, Venus being visible with the naked eye. Although seeing was good, the markings on Venus were difficult, and there was very little contrast.

Venus 196101141925

Venus 196101141925

Venus on 1961 January 14 at 14:25-14:35 local time (19:25-19:35 UT) as sketched by G. Wedge. 6" refractor at 150x. Seeing 4-3. Transparency 4. Daylight observation.

Venus 196101122130

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.

Venus 196101112110

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.

Venus 196101092125

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.

Venus 196101052200

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.

Venus 196101032130

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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