7 Messages
Digest #3540
Messages
Sun Dec 30, 2018 12:51 am (PST) . Posted by:
"Bomber2 Panther" outbackmanyep
Comet Observations 27th December 2018
29P/ Schwassmann – Wachmann 1
2018 Dec 27.44 UT; m1= [14.6; Dia= --; DC= --; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Not visible, fainter than magnitude 14.6 star in-focus.
Comparison stars checked using APASS data in Guide 9.0; Method= I; Cat= AQ
C/2018 N2 ASASSN
2018 Dec 27.45 UT; m1= 13.7; Dia= 1.1'; DC= 5/6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, faintly stellar in good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2016 M1 PanSTARRS
2018 Dec 27.46 UT; m1= 10.8; Dia= 3.5'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Slight interference from faint background stars, dims slightly in Swan band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
64P/ Swift - Gehrels
2018 Dec 27.46 UT; m1= 9.2; Dia= 8.7'; DC= 5; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Enhances in Swan Band filter, opaque centre, fading to transparent edges.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2016 N6 PanSTARRS
2018 Dec 27.47 UT; m1= 12.3; Dia= 1.3'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma very diffuse, difficult due to busy star field. No enhancement in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
29 2018 12 27.44 xI[14.6 AQ 25.0L 5 83 ICQ XX WYA
2018N2 2018 12 27.45 xM 13.7 AQ 25.0L 5 83 1.1 5/ ICQ XX WYA
2016M1 2018 12 27.46 xS 10.8 AQ 25.0L 5 39 3.5 3 ICQ XX WYA
64 2018 12 27.46 xM 9.2 TK 25.0L 5 39 8.7 5 ICQ XX WYA
2016N6 2018 12 27.47 xS 12.3 AQ 25.0L 5 83 1.3 3 ICQ XX WYA
29P/ Schwassmann – Wachmann 1
2018 Dec 27.44 UT; m1= [14.6; Dia= --; DC= --; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Not visible, fainter than magnitude 14.6 star in-focus.
Comparison stars checked using APASS data in Guide 9.0; Method= I; Cat= AQ
C/2018 N2 ASASSN
2018 Dec 27.45 UT; m1= 13.7; Dia= 1.1'; DC= 5/6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, faintly stellar in good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2016 M1 PanSTARRS
2018 Dec 27.46 UT; m1= 10.8; Dia= 3.5'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Slight interference from faint background stars, dims slightly in Swan band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
64P/ Swift - Gehrels
2018 Dec 27.46 UT; m1= 9.2; Dia= 8.7'; DC= 5; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Enhances in Swan Band filter, opaque centre, fading to transparent edges.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2016 N6 PanSTARRS
2018 Dec 27.47 UT; m1= 12.3; Dia= 1.3'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma very diffuse, difficult due to busy star field. No enhancement in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
29 2018 12 27.44 xI[14.6 AQ 25.0L 5 83 ICQ XX WYA
2018N2 2018 12 27.45 xM 13.7 AQ 25.0L 5 83 1.1 5/ ICQ XX WYA
2016M1 2018 12 27.46 xS 10.8 AQ 25.0L 5 39 3.5 3 ICQ XX WYA
64 2018 12 27.46 xM 9.2 TK 25.0L 5 39 8.7 5 ICQ XX WYA
2016N6 2018 12 27.47 xS 12.3 AQ 25.0L 5 83 1.3 3 ICQ XX WYA
Sun Dec 30, 2018 1:00 am (PST) . Posted by:
"Bomber2 Panther" outbackmanyep
Comet Observations 28th December 2018
C/2016 M1 PanSTARRS
2018 Dec 28.45 UT; m1= 10.4; Dia= 3.8'; DC= 4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Close to star, moderately condensed opaque centre, transparent outer coma.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2018 N2 ASASSN
2018 Dec 28.46 UT; m1= 13.9; Dia= 1.5'; DC= 6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Faintly stellar in good seeing, diffuse coma.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
64P/ Swift - Gehrels
2018 Dec 28.46 UT; m1= 9.2; Dia= 12'; DC= 4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Circular coma, opaque centre, moderately condensed, fading to edges.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2016 N6 PanSTARRS
2018 Dec 28.47 UT; m1= 13.0; Dia= 1.3'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Sometimes faintly stellar, diffuse outer coma, close to star.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
2016M1 2018 12 28.45 xM 10.4 AQ 25.0L 5 39 3.8 4 ICQ XX WYA
2018N2 2018 12 28.46 xM 13.9 AQ 25.0L 5 83 1.5 6 ICQ XX WYA
64 2018 12 28.46 xM 9.2 TK 25.0L 5 39 12.0 4 ICQ XX WYA
2016N6 2018 12 28.47 xS 13.0 AQ 25.0L 5 83 1.3 3 ICQ XX WYA
C/2016 M1 PanSTARRS
2018 Dec 28.45 UT; m1= 10.4; Dia= 3.8'; DC= 4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Close to star, moderately condensed opaque centre, transparent outer coma.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
C/2018 N2 ASASSN
2018 Dec 28.46 UT; m1= 13.9; Dia= 1.5'; DC= 6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Faintly stellar in good seeing, diffuse coma.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
64P/ Swift - Gehrels
2018 Dec 28.46 UT; m1= 9.2; Dia= 12'; DC= 4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Circular coma, opaque centre, moderately condensed, fading to edges.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2016 N6 PanSTARRS
2018 Dec 28.47 UT; m1= 13.0; Dia= 1.3'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Sometimes faintly stellar, diffuse outer coma, close to star.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
2016M1 2018 12 28.45 xM 10.4 AQ 25.0L 5 39 3.8 4 ICQ XX WYA
2018N2 2018 12 28.46 xM 13.9 AQ 25.0L 5 83 1.5 6 ICQ XX WYA
64 2018 12 28.46 xM 9.2 TK 25.0L 5 39 12.0 4 ICQ XX WYA
2016N6 2018 12 28.47 xS 13.0 AQ 25.0L 5 83 1.3 3 ICQ XX WYA
Sun Dec 30, 2018 1:02 am (PST) . Posted by:
"Bomber2 Panther" outbackmanyep
Comet Observations 29th December 2018
C/2016 M1 PanSTARRS
2018 Dec 29.45 UT; m1= 10.6; Dia= 4.0'; DC= 4/5; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Small opaque centre, fading to edges.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
2016M1 2018 12 29.45 xM 10.6 AQ 25.0L 5 39 4.0 4/ ICQ XX WYA
C/2016 M1 PanSTARRS
2018 Dec 29.45 UT; m1= 10.6; Dia= 4.0'; DC= 4/5; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Small opaque centre, fading to edges.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
2016M1 2018 12 29.45 xM 10.6 AQ 25.0L 5 39 4.0 4/ ICQ XX WYA
Sun Dec 30, 2018 7:30 am (PST) . Posted by:
biely.marek
Hello everybody,
here are my latest comet observations:
C/2018 V1 (Machholz-Fujikawa-Iwamoto):
2018 Nov. 17.19 UT: m1=[9.4, Dia.=!4.5', 20x80 binoculars, NEGATIVE
[No chance to be seen in such altitudes. Fainter than 9.4 mag.]
46P/Wirtanen:
2018 Dec. 22.80 UT: m1=4.4:, Dia.=&30', DC=0/, 20x80 binoculars
[Observed between clouds and after almost the whole afternoon of rain. Observation was also influenced by strong moonlight. Due to these reasons are the magnitude and coma values uncertain.]
ICQ formats are available on COBS.
Nice day and happy New Year to everyone!
Marek Biely, Czech Republic, Brno (244 m.a.s.l.)
here are my latest comet observations:
C/2018 V1 (Machholz-Fujikawa-Iwamoto):
2018 Nov. 17.19 UT: m1=[9.4, Dia.=!4.5', 20x80 binoculars, NEGATIVE
[No chance to be seen in such altitudes. Fainter than 9.4 mag.]
46P/Wirtanen:
2018 Dec. 22.80 UT: m1=4.4:, Dia.=&30', DC=0/, 20x80 binoculars
[Observed between clouds and after almost the whole afternoon of rain. Observation was also influenced by strong moonlight. Due to these reasons are the magnitude and coma values uncertain.]
ICQ formats are available on COBS.
Nice day and happy New Year to everyone!
Marek Biely, Czech Republic, Brno (244 m.a.s.l.)
Sun Dec 30, 2018 7:33 am (PST) . Posted by:
biely.marek
Hello everybody,
here are my latest comet observations:
C/2018 V1 (Machholz-Fujikawa-Iwamoto):
2018 Nov. 17.19 UT: m1=[9.4, Dia.=!4.5', 20x80 binoculars, NEGATIVE
[No chance to be seen in such altitudes. Fainter than 9.4 mag.]
46P/Wirtanen:
2018 Dec. 22.80 UT: m1=4.4:, Dia.=&30', DC=0/, naked eye (1x)
[Observed between clouds and after almost the whole afternoon of rain. Observation was also influenced by strong moonlight. Due to these reasons are the magnitude and coma values uncertain.]
ICQ formats are available on COBS.
Nice day and happy New Year to everyone!
Marek Biely, Czech Republic, Brno (244 m.a.s.l.)
here are my latest comet observations:
C/2018 V1 (Machholz-Fujikawa-Iwamoto):
2018 Nov. 17.19 UT: m1=[9.4, Dia.=!4.5', 20x80 binoculars, NEGATIVE
[No chance to be seen in such altitudes. Fainter than 9.4 mag.]
46P/Wirtanen:
2018 Dec. 22.80 UT: m1=4.4:, Dia.=&30', DC=0/, naked eye (1x)
[Observed between clouds and after almost the whole afternoon of rain. Observation was also influenced by strong moonlight. Due to these reasons are the magnitude and coma values uncertain.]
ICQ formats are available on COBS.
Nice day and happy New Year to everyone!
Marek Biely, Czech Republic, Brno (244 m.a.s.l.)
Sun Dec 30, 2018 11:08 am (PST) . Posted by:
"Juan Jose Gonzalez" jjgsgp
38P/Stephan-Oterma:
2018 Dec. 29.84 UT: m1=9.7, Dia.=6', DC=3/,
Tail: 0.15 deg. in PA 260 deg, 20 cm SCT (100x).
[ Sidgwick method. Tycho-2 comparison stars.].
46P/Wirtanen:
2018 Dec. 29.82 UT: m1=5.1, Dia.=45', DC=3/, 12x45 monocular..
[ In 12x45 monocular: several stars inside the coma,
the brightest being mag. 7.4 (TK). Comet visible to naked eye,
magnitude difficult to estimate due to nearby field stars.
Sidgwick method. Tycho-2 comparison stars.].
C/2018 L2 (ATLAS):
2018 Dec. 29.77 UT: m1=9.7, Dia.=4.5', DC=2/, 20 cm SCT (77x).
[ Altitude: 14 deg. Sidgwick method. Tycho-2 comparison stars.].
( Alto del Castro, Leon, Spain; Alt. 1720 m, 42º 54' N, 5º 48' W;
SQM 21.4 at zenith.).
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ICQ Format :
38 2018 12 29.84 S 9.7 TK 20.3T10 100 6 3/ 0.15 260 ICQ XX GON05
46 2018 12 29.82 S 5.1 TK 4.5R 12 45 3/ ICQ XX GON05
2018L2 2018 12 29.77 S 9.7 TK 20.3T10 77 4.5 2/ ICQ XX GON05
----------------------------------------------------------
J. J. Gonzalez
----------------------------------------------------------
2018 Dec. 29.84 UT: m1=9.7, Dia.=6', DC=3/,
Tail: 0.15 deg. in PA 260 deg, 20 cm SCT (100x).
[ Sidgwick method. Tycho-2 comparison stars.].
46P/Wirtanen:
2018 Dec. 29.82 UT: m1=5.1, Dia.=45', DC=3/, 12x45 monocular..
[ In 12x45 monocular: several stars inside the coma,
the brightest being mag. 7.4 (TK). Comet visible to naked eye,
magnitude difficult to estimate due to nearby field stars.
Sidgwick method. Tycho-2 comparison stars.].
C/2018 L2 (ATLAS):
2018 Dec. 29.77 UT: m1=9.7, Dia.=4.5', DC=2/, 20 cm SCT (77x).
[ Altitude: 14 deg. Sidgwick method. Tycho-2 comparison stars.].
( Alto del Castro, Leon, Spain; Alt. 1720 m, 42º 54' N, 5º 48' W;
SQM 21.4 at zenith.).
----------------------------------------------------------
ICQ Format :
38 2018 12 29.84 S 9.7 TK 20.3T10 100 6 3/ 0.15 260 ICQ XX GON05
46 2018 12 29.82 S 5.1 TK 4.5R 12 45 3/ ICQ XX GON05
2018L2 2018 12 29.77 S 9.7 TK 20.3T10 77 4.5 2/ ICQ XX GON05
----------------------------------------------------------
J. J. Gonzalez
----------------------------------------------------------
Sun Dec 30, 2018 1:54 pm (PST) . Posted by:
"Bomber2 Panther" outbackmanyep
Comet Observations 30th December 2018
38P/ Stephan - Oterma
2018 Dec 30.66 UT; m1= 10.0; Dia= 4.5'; DC= 3/4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Moonlight; Low altitude = 18.8°; Coma diffuse, opaque centre, transparent outer coma, enhances slightly in Swan band filter.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2018 Y1 Iwamoto
2018 Dec 30.69 UT; m1= 11.3; Dia= 1.4'; DC= 2/3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Moonlight; Coma diffuse, slight brightening to centre, enhances in Swan band filter. Visible at x39 but just above background sky threshold under moonlit conditions, difficult to obtain measurement at that scale. Elongation from the Moon is approximately 21 degrees.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
60P/ Tsuchinshan
2018 Dec 30.71 UT; m1= 13.2; Dia= 2.5'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Moonlight; Difficult, diffuse coma, visible in periods of good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
38 2018 12 30.66 xM 10.0 TK 25.0L 5 39 4.5 3/ ICQ XX WYA
2018Y1 2018 12 30.69 xS 11.3 AQ 25.0L 5 83 1.4 2/ ICQ XX WYA
60 2018 12 30.71 xS 13.2 AQ 25.0L 5 83 2.5 3 ICQ XX WYA
38P/ Stephan - Oterma
2018 Dec 30.66 UT; m1= 10.0; Dia= 4.5'; DC= 3/4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Moonlight; Low altitude = 18.8°; Coma diffuse, opaque centre, transparent outer coma, enhances slightly in Swan band filter.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2018 Y1 Iwamoto
2018 Dec 30.69 UT; m1= 11.3; Dia= 1.4'; DC= 2/3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Moonlight; Coma diffuse, slight brightening to centre, enhances in Swan band filter. Visible at x39 but just above background sky threshold under moonlit conditions, difficult to obtain measurement at that scale. Elongation from the Moon is approximately 21 degrees.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
60P/ Tsuchinshan
2018 Dec 30.71 UT; m1= 13.2; Dia= 2.5'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Moonlight; Difficult, diffuse coma, visible in periods of good seeing.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ
38 2018 12 30.66 xM 10.0 TK 25.0L 5 39 4.5 3/ ICQ XX WYA
2018Y1 2018 12 30.69 xS 11.3 AQ 25.0L 5 83 1.4 2/ ICQ XX WYA
60 2018 12 30.71 xS 13.2 AQ 25.0L 5 83 2.5 3 ICQ XX WYA
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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