4 Messages
Digest #3358
Messages
Thu Dec 14, 2017 8:26 pm (PST) . Posted by:
"Bomber2 Panther" outbackmanyep
Comet Observations 14th December 2017
C/2016 R2 PanSTARRS
2017 Dec 14.66 UT; m1= 10.8; Dia= 3.8'; DC= 3/4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Tail visible 5' in length in P.A. 100° approximately. coma does not enhance in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2017 T1 Heinze
2017 Dec 14.67 UT; m1= 13.5; Dia= 1.3'; DC= 2; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, weakly condensed.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
62P/ Tsuchinshan
2017 Dec 14.68 UT; m1= 11.0; Dia= 4.3'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Low altitude = 16.5°. Coma does not enhance in Swan Band filter, diffuse.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
C/2016 R2 PanSTARRS
2017 Dec 14.66 UT; m1= 10.8; Dia= 3.8'; DC= 3/4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Tail visible 5' in length in P.A. 100° approximately. coma does not enhance in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2017 T1 Heinze
2017 Dec 14.67 UT; m1= 13.5; Dia= 1.3'; DC= 2; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, weakly condensed.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
62P/ Tsuchinshan
2017 Dec 14.68 UT; m1= 11.0; Dia= 4.3'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Low altitude = 16.5°. Coma does not enhance in Swan Band filter, diffuse.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
Thu Dec 14, 2017 8:26 pm (PST) . Posted by:
"Bomber2 Panther" outbackmanyep
Comet Observations 13th December 2017
174P/ Echeclus
2017 Dec 13.59 UT; m1= 14.0; Dia= 1'; DC= 5/6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, uniform brightness across coma with faint stellar centre visible in good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2016 R2 PanSTARRS
2017 Dec 13.60 UT; m1= 11.0; Dia= 3.2'; DC= 4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Tail visible 5.6' in length in P.A. 358° approximately, semi-transparent; Interference by star pair in coma. Coma dims in Swan band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2017 T1 Heinze
2017 Dec 13.61 UT; m1= 13.8; Dia= 1'; DC= 2; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma very diffuse.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
C/2017 K6 Jacques
2017 Dec 13.65 UT; m1= 14.0; Dia= 0.8'; DC= 5/6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma faintly stellar in periods of good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
A/3200 Phaethon
2017 Dec 13.57 UT; m1= 10.7; Dia= --; DC= 9; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Low altitude = 11.1°.
Comparison stars checked using APASS data in Guide 9.0; Method= I; Cat= AQ
174P/ Echeclus
2017 Dec 13.59 UT; m1= 14.0; Dia= 1'; DC= 5/6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, uniform brightness across coma with faint stellar centre visible in good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2016 R2 PanSTARRS
2017 Dec 13.60 UT; m1= 11.0; Dia= 3.2'; DC= 4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Tail visible 5.6' in length in P.A. 358° approximately, semi-transparent; Interference by star pair in coma. Coma dims in Swan band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2017 T1 Heinze
2017 Dec 13.61 UT; m1= 13.8; Dia= 1'; DC= 2; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma very diffuse.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
C/2017 K6 Jacques
2017 Dec 13.65 UT; m1= 14.0; Dia= 0.8'; DC= 5/6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma faintly stellar in periods of good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
A/3200 Phaethon
2017 Dec 13.57 UT; m1= 10.7; Dia= --; DC= 9; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Low altitude = 11.1°.
Comparison stars checked using APASS data in Guide 9.0; Method= I; Cat= AQ
Fri Dec 15, 2017 4:41 am (PST) . Posted by:
neilnorman27
Hello all.
Comet observations December 14th, 2017.
Comet C/2016 R2 (PanSTARRS)
m1= 9.5, Dia=4', DC=4. 20x80 binoculars.
Neil Norman, FRAS.
Ipswich,England.
Comet observations December 14th, 2017.
Comet C/2016 R2 (PanSTARRS)
m1= 9.5, Dia=4', DC=4. 20x80 binoculars.
Neil Norman, FRAS.
Ipswich,England.
Fri Dec 15, 2017 11:14 am (PST) . Posted by:
"Thomas Lehmann" ewelot
Please find enclosed a list of my recent comet observations in ICQ format.
Magnitudes are derived from large aperture photometry of CCD/DSLR images
(using green filter or green color channel) and are supposed to conform
to visual estimates of total coma magnitudes.
Remote observations were carried out using telescopes from iTelescope.net.
For image reduction and photometric analysis I used my AIRTOOLS software
(see https://github.com/ewelot/
Thomas Lehmann
Weimar, Germany
2015ER612017 12 08.49 C 14.8 AQ 40.0L 4a600 3.5 0.55 259 LEHaa 20.0 CCD/G remote (SSO)
2015V2 2017 12 07.44 C 12.4 AQ 10.6R 5a360 5 0.2 294 LEHaa 18.1 CCD/G remote (SSO)
2015V2 2017 12 11.44 C 12.6 AQ 10.6R 5a480 4.5 0.3 290 LEHaa 18.5 CCD/G remote (SSO)
2016R2 2017 12 13.35 C 10.1 AQ 10.6R 5a480 14 0.49 205 LEHaa 18.0 CCD/G remote (Mayhill), plasma tail 0.2 deg at pa=9
71 2017 12 13.44 C 14.7 AQ 51.0L 4a720 2.8 0.02 116 LEHaa 20.0 CCD/G remote (Mayhill), moon 20% dist 116deg
Phaethon2017 12 13.35 C 10.6 AQ 10.6R 5a150 1.3 LEHaa 17.6 CCD/G remote (Mayhill), starlike
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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