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Thursday, 28 December 2017

Fwd: [CometObs] Digest Number 3362

1 Message

Digest #3362
1a
Comet Observations by neilnorman27

Message

Wed Dec 27, 2017 3:29 pm (PST) . Posted by:

neilnorman27

Hello all.

Comet Observations 27/12/17. 23.11 UT. 20x80 binoculars.

C/2017 T1 (Heinze).

m1=10.8, Dia=1', DC=4.

Neil Norman. FRAS.
Ipswich,England.
Visit Your Group
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--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
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)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
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Monday, 25 December 2017

Fwd: [CometObs] Digest Number 3361

1 Message

Digest #3361
1
Comet Observations 23rd December 2017 by "Bomber2 Panther" outbackmanyep

Message

Sun Dec 24, 2017 1:31 am (PST) . Posted by:

"Bomber2 Panther" outbackmanyep

Comet Observations 23rd December 2017

174P/ Echeclus
2017 Dec 23.58 UT; m1= 13.8; Dia= 1'; DC= 2; 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/2016 R2 PanSTARRS
2017 Dec 23.59 UT; m1= 11.2; Dia= 3.5'; DC= 3/4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Interference by faint stars in 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 23.64 UT; m1= 11.8; Dia= 1.5'; DC= 4/5; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Does not enhance in Swan Band filter, coma elongated to the West approximately. Central condensation sometimes appears stellar in periods of good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ

62P/ Tsuchinshan
2017 Dec 23.67 UT; m1= 11.7; Dia= 2.9'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Low altitude = 16°. No enhancement in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

24P/ Schaumasse
2017 Dec 23.69 UT; m1= 12.2; Dia= 1.8'; DC= 2/3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Low altitude = 9.6°; Coma diffuse.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ




--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
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)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
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Tuesday, 19 December 2017

Fwd: [CometObs] Digest Number 3359

1 Message

Digest #3359
1

Message

Mon Dec 18, 2017 2:33 am (PST) . Posted by:

"Juan Jose Gonzalez" jjgsgp

62P/Tsuchinshan:
2017 Dec. 16.19 UT: m1=9.7, Dia.=6', DC=2/, 20 cm SCT (77x).
[ Sidgwick method. Tycho-2 comparison stars. SQM : 21.0.].

C/2016 R2 (PANSTARRS):
2017 Dec. 16.14 UT: m1=10.1, Dia.=5', DC=2, 20 cm SCT (77x).
[ Increasing activity. It is difficult to separate the
contribution of the inner ion tail from that of the coma
to the total magnitude m1. Field stars checked in DSS.
Sidgwick method. Tycho-2 comparison stars. SQM : 20.9.].

C/2017 T1 (Heinze):
2017 Dec. 16.08 UT: m1=12.0, Dia.=2.5', DC=2/, 20 cm SCT (133x).
[ Faint outer coma. Motion checked during a 30-min period.
Field stars checked in DSS. Sidgwick method.
APASS comparison stars. SQM : 21.1.].

( Villacintor, Leon, Spain; Alt. 930 m, 42º 29' N, 5º 11' W;
Rural location, very clear sky. SQM 21.3 at zenith.).

----------------------------------------------------------

ICQ Format :

62 2017 12 16.19 S 9.7 TK 20.3T10 77 6 2/ ICQ XX GON05

2016R2 2017 12 16.14 S 10.1 TK 20.3T10 77 5 2 ICQ XX
GON05

2017T1 2017 12 16.08 S 12.0 AQ 20.3T10 1332.5 2/ ICQ XX GON05

----------------------------------------------------------

J. J. Gonzalez

----------------------------------------------------------




--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
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)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
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Saturday, 16 December 2017

Fwd: [CometObs] Digest Number 3358

4 Messages

Digest #3358
1
Comet Observations 14th December 2017 by "Bomber2 Panther" outbackmanyep
2
Comet Observations 13th December 2017 by "Bomber2 Panther" outbackmanyep
3a
Comet observations. by neilnorman27
4
Observations Dec 07 - Dec 13 by "Thomas Lehmann" ewelot

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

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

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.

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/airtools).

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
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
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)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
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Wednesday, 13 December 2017

Fwd: [CometObs] Digest Number 3356

1 Message

Digest #3356
1
174P in outburst, Phaethon. by "Juan Jose Gonzalez" jjgsgp

Message

Tue Dec 12, 2017 2:49 am (PST) . Posted by:

"Juan Jose Gonzalez" jjgsgp

174P/Echeclus:
2017 Dec. 11.83 UT: m1=13.6, Dia.= 0.3', DC=8, 20 cm SCT (222x).
[ In outburst. Field stars checked in DSS. Morris method.
APASS comparison stars. SQM : 21.3.].].

(3200) Phaethon:
2017 Dec. 11.91 UT: m1=11.0, Dia.= --, DC=9, 20 cm SCT (133x).
[ Stellar appearance. Motion obvious. In-focus method.
Tycho-2 comparison stars. SQM : 21.2.].

( Villacintor, Leon, Spain; Alt. 930 m, 42º 29' N, 5º 11' W;
Rural location, very clear sky. SQM 21.3 at zenith.).

----------------------------------------------------------

ICQ Format :

174 2017 12 11.83 M 13.6 AQ 20.3T10 222 0.3 8 ICQ XX
GON05

3200 2017 12 11.91 I 11.0 TK 20.3T10 133 9 ICQ
XX GON05

----------------------------------------------------------

J. J. Gonzalez

----------------------------------------------------------




--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
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)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Posted by at No comments:

Monday, 11 December 2017

Fwd: [CometObs] Digest Number 3355

2 Messages

Digest #3355
1
Comet Observations 7th December 2017 by "Bomber2 Panther" outbackmanyep
2
Observations Nov 28 - Dec 07 by "Thomas Lehmann" ewelot

Messages

Fri Dec 8, 2017 12:57 am (PST) . Posted by:

"Bomber2 Panther" outbackmanyep

Comet Observations 7th December 2017

C/2015 V2 Johnson
2017 Dec 07.43 UT; m1= 13.5; Dia= 1.1'; DC= 5/6; 25cm L, f:5 (x166) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, with faint stellar central condensation in periods of good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ

C/2017 K6 Jacques
2017 Dec 07.44 UT; m1= 14.2; Dia= 0.9'; DC= 3; 25cm L, f:5 (x166) [Chris Wyatt, Walcha, NSW, Australia]
Coma very diffuse. Sometimes faintly stellar in periods of good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

C/2016 R2 PanSTARRS
2017 Dec 07.45 UT; m1= 11.2; Dia= 2'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Does not enhance in Swan Band filter. Coma appears elongated to the West approximately.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

Fri Dec 8, 2017 2:13 pm (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/airtools).

Thomas Lehmann
Weimar, Germany

2016R2 2017 11 28.38 C 11.0 AQ 10.6R 5a480 11 0.25 219 LEHaa 18.5 CCD/G remote (Mayhill), plasma tail 0.20 deg at pa=309

2017O1 2017 12 07.74 C 10.5 AQ 07.5A 4D154 17 LEHaa 18.5 DSLR green

24 2017 12 04.52 C 11.2 AQ 10.6R 5a480 7 LEHaa 17.4 CCD/G remote (Mayhill), moon 99% dist 113deg

62 2017 12 04.51 C 10.9 AQ 10.6R 5a360 7 LEHaa 17.2 CCD/G remote (Mayhill), moon 99% dist 93deg
62 2017 12 05.73 C 10.8 AQ 10.6R 5a360 10 LEHaa 17.8 CCD/G remote (SSO), moon 94% dist 76deg

71 2017 12 04.43 C 14.8 AQ 40.0L 4a600 2.1 LEHaa 19.0 CCD/G remote (SSO), moon 99% dist 122deg

Visit Your Group
Yahoo! Groups



--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
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)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
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