2 Messages
Digest #3299
Messages
Sat Aug 12, 2017 3:46 am (PDT) . Posted by:
"Bomber2 Panther" outbackmanyep
Comet Observations 12th August 2017
C/2015 V2 Johnson
2017 Aug 12.39 UT; m1= 9.9; Dia= 4.5'; DC= 5/6; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma fanned to the North approximately, opaque inner coma with faint stellar central condensation visible in periods of good seeing.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
71P/ Clark
2017 Aug 12.40 UT; m1= 12.0; Dia= 1.6'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse and semi-transparent, weakly condensed centre.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
C/2015 V2 Johnson
2017 Aug 12.39 UT; m1= 9.9; Dia= 4.5'; DC= 5/6; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma fanned to the North approximately, opaque inner coma with faint stellar central condensation visible in periods of good seeing.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
71P/ Clark
2017 Aug 12.40 UT; m1= 12.0; Dia= 1.6'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse and semi-transparent, weakly condensed centre.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
Sat Aug 12, 2017 3:50 am (PDT) . Posted by:
"Bomber2 Panther" outbackmanyep
Comet Observations 1st August 2017
29P/ Schwassmann - Wachmann
2017 Aug 01.73 UT; m1= 13.4; Dia= 1'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
C/2015 VL62 Lemmon-Yeung-PanSTARRS
2017 Aug 01.74 UT; m1= 13.8; Dia= 0.8'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, small central condensation.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
C/2017 O1 (ASASSN1)
2017 Aug 01.74 UT; m1= 9.8; Dia= 7.5'; DC= 5/6; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Enhances in Swan Band filter; Outer coma semi-transparent, inner coma diffuse and opaque with a faint stellar centre visible in good seeing.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2015 ER61 PanSTARRS
2017 Aug 01.75 UT; m1= 11.6; Dia= 3.8'; DC= 4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, brightening to centre, moderately condensed, does not enhance in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
217P/ LINEAR
2017 Aug 01.76 UT; m1= 12.6; Dia= 1'; DC= 6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Does not enhance in Swan Band filter, coma slightly elongated to NW approximately.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
29P/ Schwassmann - Wachmann
2017 Aug 01.73 UT; m1= 13.4; Dia= 1'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
C/2015 VL62 Lemmon-Yeung-PanSTARRS
2017 Aug 01.74 UT; m1= 13.8; Dia= 0.8'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, small central condensation.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
C/2017 O1 (ASASSN1)
2017 Aug 01.74 UT; m1= 9.8; Dia= 7.5'; DC= 5/6; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Enhances in Swan Band filter; Outer coma semi-transparent, inner coma diffuse and opaque with a faint stellar centre visible in good seeing.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2015 ER61 PanSTARRS
2017 Aug 01.75 UT; m1= 11.6; Dia= 3.8'; DC= 4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, brightening to centre, moderately condensed, does not enhance in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
217P/ LINEAR
2017 Aug 01.76 UT; m1= 12.6; Dia= 1'; DC= 6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Does not enhance in Swan Band filter, coma slightly elongated to NW approximately.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
Good Clear Skies
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Astrocomet
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Colin James Watling
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Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
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Real Astronomer and head of the Comet section for LYRA (Lowestoft and Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
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Lyra Main Website: http://www.lyra-astro.co.uk/
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