Geoff Gaherty

Jupiter 195905190355

Jupiter on 1959 May 18/19 at 23:55 EDT (03:55 UT) as sketched by Geoffrey Gaherty, Jr. C.M.(1) 168º, C.M.(2) 313º. 8" Cave reflector at 240x. Seeing 7. Transparency 4. North is down, east to the right.

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Jupiter 195905040440

Jupiter on 1959 May 3/4 at 00:40 EDT (04:40 UT) as sketched by Geoffrey Gaherty, Jr. C.M.(1) 344º, C.M.(2) 244º. 8" reflector at 240x. Seeing 4. Transparency 4. North is down. Suspected doubling of NEB.

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Jupiter 195905020355

Jupiter on 1959 May 1/2 at 23:55 EDT (03:55 UT) as sketched by Geoffrey Gaherty, Jr. C.M.(1) 1º, C.M.(2) 276º. 8" reflector at 170x. Seeing 4. Transparency 3. North is down.

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Venus 196106031755

Venus on 1961 June 3 at 13:50-13:55 local time (17:55 UT) as sketched by G. Gaherty. 6" refractor at 150x. Seeing 1-2/10. Transparency 4-5/5. Phase estimated as about 42%. Seeing too poor to permit intensity estimates.

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Venus 196105111520

Venus on 1961 May 11 at 11:15-11:25 local time (15:20 UT) as sketched by Geoffrey Gaherty, Jr. 8" reflector at 180x. Seeing 1-2. Transparency 4. Daylight observation. Ashen light suspected. Terminator looks reddish brown, rest of planet white.

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Venus 196105101650

Venus on 1961 May 10 at 12:45-13:00 EDT (16:50 UT) as sketched by Geoffrey Gaherty, Jr. 8" reflector at 180x. Seeing 0-1. Transparency 4. Daylight observation.

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Venus 196104211705

Venus on 1961 April 21 at 12:00-12:10 local time (17:05 UT) as sketched by G. Gaherty, Jr. 6" refractor at 150x. Seeing 1-2/10. Transparency 3-4 (daylight). Cusps definitely extended more than 180º, shadings probably contrast effects. Ashen Light suspected. Phase 4% –K.B.

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Venus 196104091605

Venus on 1961 April 9 at 11:00-11:10 local time (16:05 UT) as sketched by G. Gaherty. 8" reflector at 90x. Seeing 2. Transparency 4-5. Illuminated atmosphere as hair-line all around disk. k = 1.5 (27 hours from inferior conjunction).

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Venus 196103251855

Venus on 1961 March 25 at 13:50-13:55 local time (18:55 UT) as sketched by G. Gaherty. 6" refractor at 150x. Seeing 1-2/10. Transparency 3-4/5 (daylight). No detail other than terminator shading; ashen light vaguely suspected.

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Venus 196103111745

Venus at 1961 March 11 at 12:40-12:50 local time (17:45 UT) as sketched by G. Gaherty. 6" refractor at 150x. Seeing 2-3/10. Transparency 4-5/5. Ashen light suspected.

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