66P/du Toit

66P/du Toit
Reported observations:
2018 Aug. 20.13 UT: m1=11.5, Dia.=5', DC=1/, ... 20-cm SCT(77x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [ Faint tail difficult to separate from the coma. The bright estimate (11.5) is related to the 5' observed width of the coma and tail. Sidgwick method. Tycho-2 comparison stars. SQM: 21.2]
2018 Aug. 15.74 UT: m1=13.8, Dia.=1.5’, DC=3, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult to see, very diffuse. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Aug. 12.04 UT: m1=13.5, Dia.=1', DC=0, ... 0.60-m f/4 L(244x) ... Gabor Santa (Tarján, Hungary) [very diffuse, h= 23deg.] 
2018 Aug. 08.75 UT: m1=13.8, Dia.=1.7’, DC=1/, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult due to glare from nearby 6.2 mag star in field, observed in periods of good seeing with bright star just out of field. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Aug. 06.63 UT: m1=13.0, Dia.=2.6’, DC=2, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult, very diffuse, slight brightening to centre. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 July 23.75 UT: m1=13.6, Dia.=1.8’, DC=2, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Very diffuse, difficult. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 July 22.13 UT: m1=10.0, Dia.=4', DC=2, ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Quintanilla de los Oteros, Leon, Spain. Alt. 860 m, 42º 19' N, 5º 24' W) [Beginning of astronomical twilight. Altitude: 19 deg. Sidgwick method. Tycho-2 comparison stars. SQM: 21.2]
2018 July 18.77 UT: m1=12.0, Dia.=4’, DC=2, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Enhances slightly in Swan Band filter. Very diffuse. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 July 18.12 UT: m1=9.9, Dia.=4', DC=2, ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [Beginning of astronomical twilight. Altitude: 16 deg. Sidgwick method. Tycho-2 comparison stars. SQM: 21.0]
2018 July 15.12 UT: m1=11.7, Dia.=2', DC=2, ... 20-cm T(80x) ... Carlos Labordena (Castellón, España) [no tail]
2018 July 11.76 UT: m1=12.3, Dia.=2.3’, DC=1, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, weakly condensed, close to mag 12.5 star. Faintly visible at x39 as a diffuse patch. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 July 10.12 UT: m1=9.7, Dia.=5', DC=2/, .. 20-cm SCT (77x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain; Alt. 1720 m, 42º 54' N, 5º 48' W) [Beginning of astronomical twilight. Altitude: 11 deg. Sidgwick method. Tycho-2 comparison stars. SQM: 20.9]
2018 July 09.66 UT: m1=12.7, Dia.=2.1’, DC=2/, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Very diffuse and weakly condensed. Barely visible at x39. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 June 23.75 UT: m1=11.1, Dia.=7’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Enhances in Swan Band filter, coma diffuse, weakly condensed centre. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 June 22.76 UT: m1=11.1, Dia.=5.1’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Enhances slightly in Swan Band filter. Very diffuse, minimal interference from nearby bright stars. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 June 16.33 UT: m1=11.2, Dia.=2', DC=2/, ... 22-cm L (160x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2018 June 13.77 UT: m1=10.8, Dia.=6.3’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, weakly condensed opaque centre. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 June 12.75 UT: m1=11.0, Dia.=6.3’, DC=3/, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse, opaque centre but weakly condensed. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 June 11.71 UT: m1=10.3, Dia.=7.2’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma large and very diffuse, no enhancement in Swan Band filter. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= S, Cat= TK]
2018 May  25.74 UT: m1=10.7, Dia.=6.5’, DC=3, ... 25cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse and pale aqua-blue in colour, faint star in coma. Hint of elongation to the West approximately. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 May  22.74 UT: m1=10.2, Dia.=5.8’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma enhances in Swan Band filter, diffuse with weakly condensed opaque centre. Faint star in coma. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= S, Cat= TK]
2018 May  21.73 UT: m1=10.6, Dia.=4.4’; DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Interference by nearby stars. Enhances in Swan Band filter. Diffuse coma, slightly brighter in the centre but weakly condensed. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 May  20.33 UT: m1=11.2, Dia.=3', DC=2, ... 22-cm L (160x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2018 May  19.75 UT; m1=10.5, Dia.=6.6’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma large, opaque centre, semi-transparent outer coma appears slightly elongated to the NE. Enhances in Swan Band filter. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= S, Cat= TK]
2018 May  18.75 UT: m1=10.4, Dia.=5.8’, DC=3/4, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse, slight brightening to centre. Enhances slightly in Swan Band filter. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= S, Cat= TK]
2018 May  10.63 UT: m1=10.6, Dia.=3.8’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, weakly condensed. Low altitude = 19.4°. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 May  09.65 UT: m1=10.5, Dia.=4.1’, DC=2/3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma very diffuse, visible just above sky background threshold. Difficult. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Apr. 22.29 UT: m1=12.4, Dia.=1', DC=2, ... 22-cm L (160x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2018 Apr. 20.70 UT: m1=11.3, Dia.=5’, DC=2/3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Close to stars, coma diffuse, slight enhancement in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Apr. 16.74 UT: m1=11.0, Dia.=5’, DC=2/3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, close to stars. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Apr. 15.73 UT: m1=11.9, Dia.=2.4’, DC=2/3, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma appears as a diffuse patch of light, does not enhance in Swan band filter. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Apr. 14.68 UT: m1=12.6, Dia.=1.6’, DC=1/2, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter, coma very diffuse. Close to faint stars. Visible at x39 as a patch of diffuse light. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Apr. 11.67 UT: m1=12.4, Dia.=1.8’, DC=2/3, ... 25-cm L f:5 (83x) .... Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter; Coma very diffuse and visible despite being close to bright star. Minimal interference from moonlight (Moon alt = 0.6°). Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2003 July 24.30 UT: m1=13.0, Dia.=1.2', DC=2/9 ... 41-cm L(166x) ... John Drummond (Gisborne, New Zealand) [66P appears as a large VERY diffuse faint smudge. Cannot see a nucleus]
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