Klaus Brasch

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.

Continue Reading

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.

Continue Reading

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.

Continue Reading

Venus 196012271905

Venus on 1960 December 27 at 14:05-14:09 local time (19:05-19:09 UT) as sketched by K.R. Brasch. 6" refractor at 150x. Seeing 2-3. Transparency 3.

Continue Reading

Venus 196012202100

Venus on 1960 December 20/21 at 16:00-16:30 local time (21:00-21:30 UT) as sketched by K.R. Brasch. 8" reflector at 165x. Seeing 3-5. Transparency 4-5. Seeing very good (5) for short time. Drawing I: no filter. Drawing II: Wratten 47B – deep violet filter. Difference between two drawings quite definite.

Continue Reading

Venus 196012112130

Venus on 1960 December 11/12 at 16:30-16:45 local time (21:30-21:45 UT) as sketched by K.R. Brasch. 8" reflector at 165x. Seeing 4-2. Transparency 4-5. Deep violet filter used (Wratten 47B). Outline of markings indefinite except for cusps.

Continue Reading

Venus 196012032130

Venus on 1960 December 3/4 at 16:30-16:45 EST (21:30-21:45 UT) as sketched by K.R. Brasch. 8" reflector at 165x-300x. Seeing 4. Transparency 3-4. Best view of shape of markings so far experienced.

Continue Reading

Venus 196010272150

Venus on 1960 October 27/28 at 17:50-18:05 local time (21:50-22:05 UT) as sketched by K.R. Brasch. 8" reflector at 165x with a blue filter. Seeing 3-0. Transparency 4-5. Outline of dark areas very indefinite.

Continue Reading

Venus 196010212115

Venus on 1960 October 21/22 at 17:15-17:25 local time (21:15-21:25 UT) as sketched by K.R. Brasch. 8" reflector at 165x with a blue filter. Seeing 3-1. Transparency 3-4. Disk completely featureless except for brightness in S. polar region.

Continue Reading

Venus 196010102225

Venus on 1960 October 10 at 06:25-06:35 local time (22:25-22:35 UT) as sketched by K.R. Brasch. 8" reflector at 165x-300x with a blue filter. Seeing 3. Transparency 3. N. polar region very large and bright. Dark marking relatively conspicuous, although outline indefinite. Dark shadings exaggerated greatly to show contast between areas.

Continue Reading

Pages

Subscribe to RSS - Klaus Brasch