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Thursday 27 July 2017

Fwd: [CometObs] Digest Number 3293

1 Message

Digest #3293
1
Comet Observations 25th July 2017 by "Bomber2 Panther" outbackmanyep

Message

Wed Jul 26, 2017 4:19 am (PDT) . Posted by:

"Bomber2 Panther" outbackmanyep

Comet Observations 25th July 2017

C/2015 V2 Johnson
2017 Jul 25.42 UT; m1= 9.6; Dia= 4'; DC= 6; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma dims in Swan Band filter, elongated slightly to the NE. Faint stellar central condensation surrounded by an opaque inner coma and fading to semi-transparent outer coma.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK

71P/ Clark
2017 Jul 25.43 UT; m1= 10.9; Dia= 3.2'; DC= 3/4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, moderately condensed centre.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ

C/2015 VL62 Lemmon-Yeung-PanSTARRS
2017 Jul 25.76 UT; m1= 13.6; Dia= 0.9'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, slight brightening to centre.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

29P/ Schwassmann - Wachmann
2017 Jul 25.76 UT; m1= 13.2; Dia= 1.2'; DC= 2; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse with slight brightening to centre.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

C/2017 O1 (ASASSN1)
2017 Jul 25.77 UT; m1= 9.9; Dia= 9.6'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma large and diffuse, enhances in Swan Band filter.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= S; Cat= TK

C/2015 ER61 PanSTARRS
2017 Jul 25.78 UT; m1= 11.2; Dia= 3'; DC= 3/4; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma enhances slightly in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ

217P/ LINEAR
2017 Jul 25.79 UT; m1= 12.2; Dia= 1.4'; DC= 5/6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, opaque centre with a faintly stellar central condensation. Does not enhance in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ
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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)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
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Tuesday 25 July 2017

Fwd: [CometObs] Digest Number 3292

2 Messages

Digest #3292
2
Comet Observations 24th July 2017 by "Bomber2 Panther" outbackmanyep

Messages

Mon Jul 24, 2017 1:45 pm (PDT) . Posted by:

"Juan Jose Gonzalez" jjgsgp

71P/Clark:
2017 July 22.93 UT: m1=9.9, Dia.=2.5', DC=4/, 20 cm SCT (77x).
[ Altitude: 10 deg. Sidgwick method. Tycho-2 comparison stars.
SQM : 20.7.].

C/2015 ER61 (PANSTARRS):
2017 July 23.12 UT: m1=10.0, Dia.=3.5', DC=3/, 20 cm SCT (100x).
[ Sidgwick method. Tycho-2 comparison stars. SQM : 21.1.].

C/2015 V2 (Johnson):
2017 July 22.92 UT: m1=7.8, Dia.=8', DC=3, 25x100B.
[ Altitude: 7 deg. Several stars in coma, the brightest
being mag 9.4 (TK). Sidgwick method. Tycho-2 comparison stars.
SQM : 21.0.].

C/2017 O1 (PCCP object ASASSN1):
2017 July 23.13 UT: m1=9.8, Dia.=5', DC=2/, 20 cm SCT (77x).
[ Brighter than expected. Diffuse object with faint outer coma.
Field stars checked in DSS. Altitude: 17 deg. Sidgwick method.
Tycho-2 comparison stars. SQM : 21.0.].

July 22 : from Alto del Trichero - Soto y Amio, Leon, Spain ( Alt. 1190 m, 42º 46' N, 5º 53' W ).

July 23 : from Alto del Castro - Aralla, Leon ( Alt. 1720 m, 42º 54' N, 5º 48' W ).

( Mountain locations, very clear sky ).

----------------------------------------------------------
ICQ Format :

71 2017 07 22.93 S 9.9 TK 20.3T10 77 2.5 4/ ICQ XX GON05 2015ER612017 07
23.12 S 10.0 TK 20.3T10 100 3.5 3/ ICQ XX GON05 2015V2 2017 07 22.92 S
7.8 TK 10.0B 25 8 3 ICQ XX GON05 2017O1 2017 07 23.13 S 9.8 TK 20.3T10
77 5 2/ ICQ XX GON05

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

J. J. Gonzalez

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

Mon Jul 24, 2017 5:44 pm (PDT) . Posted by:

"Bomber2 Panther" outbackmanyep

Comet Observations 24th July 2017

C/2015 VL62 Lemmon-Yeung-PanSTARRS
2017 Jul 24.73 UT; m1= 14.2; Dia= 0.6'; DC= 3; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Coma small and diffuse, slight brightening to centre.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

29P/ Schwassmann - Wachmann
2017 Jul 24.74 UT; m1= 13.6; Dia= 0.7'; DC= 2; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Difficult, close to pairing of stars.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

C/2017 O1 (ASASSN1)
2017 Jul 24.75 UT; m1= 10.0; Dia= 7'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma large, enhances well in Swan Band filter.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= S; Cat= TK

C/2015 ER61 PanSTARRS
2017 Jul 24.77 UT; m1= 11.2; Dia= 2.8'; DC= 3; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma enhances in Swan Band filter.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

217P/ LINEAR
2017 Jul 24.78 UT; m1= 12.1; Dia= 2.5'; DC= 5/6; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma does not enhance in Swan Band filter, slight interference by zodiacal light.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

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Good Clear Skies
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Astrocomet
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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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Sunday 16 July 2017

Fwd: [CometObs] Digest Number 3289

1 Message

Digest #3289
1
C/2015 O1, C/2015 V2, 41P, 71P. by "Juan Jose Gonzalez" jjgsgp

Message

Sat Jul 15, 2017 7:13 am (PDT) . Posted by:

"Juan Jose Gonzalez" jjgsgp

C/2015 O1 (PANSTARRS):
2017 July 14.96 UT: m1=14.5, Dia.=0.2', DC=7, 20 cm SCT (133x).
[ In-focus method. APASS comparison stars. SQM : 21.6.].

C/2015 V2 (Johnson):
2017 July 14.93 UT: m1=7.7, Dia.=10', DC=3/, 25x100B.
[ Sidgwick method. Tycho-2 comparison stars. SQM : 21.2.].

41P/Tuttle-Giacobini-Kresak:
2017 July 14.97 UT: m1=10.6, Dia.=5', DC=2, 20 cm SCT (77x).
[ Sidgwick method. Tycho-2 comparison stars. SQM : 21.1.].

71P/Clark:
2017 July 14.94 UT: m1=9.8, Dia.=2.5', DC=4/, 20 cm SCT (77x).
[ Altitude: 11 deg. Mountain location, very clear sky.
Sidgwick method. Tycho-2 comparison stars. SQM : 21.1.].

( Alto del Castro - Aralla, Leon, Spain; Alt. 1720 m, 42º 54' N, 5º 48' W ).

----------------------------------------------------------
ICQ Format :

2015O1 2017 07 14.96 I 14.5 AQ 20.3T10 133 0.2 7 ICQ XX GON05

2015V2 2017 07 14.93 S 7.7 TK10.0B 25 10 3/ ICQ
XX GON05

41 2017 07 14.97 S 10.6 TK20.3T10 77 5 2 ICQ
XX GON05

71 2017 07 14.94 S 9.8 TK 20.3T10 77 2.5 4/ ICQ
XX GON05

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

J. J. Gonzalez

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

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--
Good Clear Skies
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Astrocomet
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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 12 July 2017

Fwd: [CometObs] Digest Number 3288

1 Message

Digest #3288
1
Comet Observations 11th July 2017 by "Bomber2 Panther" outbackmanyep

Message

Tue Jul 11, 2017 2:31 am (PDT) . Posted by:

"Bomber2 Panther" outbackmanyep

Comet Observations 11th July 2017

C/2015 V2 Johnson
2017 Jul 11.38 UT; m1= 8.5; Dia= 16'; DC= 3; 7x50 B [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, slight brightening to centre. Moonlight.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= S; Cat= TK

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--
Good Clear Skies
--
Astrocomet
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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 10 July 2017

Charts-info Astrosite Groningen (July 9, 2017)

Dear comet observers,

We have prepared the following new charts:

C/2015 V2 (Johnson):

- two 6x8 degrees charts for the period 11 - 27 July 2017

These are now available in the charts section of our homepage at:
http://www.shopplaza.nl/astro

Reinder Bouma/Edwin van Dijk


--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
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 8 July 2017

Fwd: [CometObs] Digest Number 3286

1 Message

Digest #3286
1
29P in outburst, 41P, 71P, C/2015 ER61. by "Juan Jose Gonzalez" jjgsgp

Message

Fri Jul 7, 2017 11:09 am (PDT) . Posted by:

"Juan Jose Gonzalez" jjgsgp

29P/Schwassmann-Wachmann:
2017 July 2.06 UT: m1=12.2, Dia.=1.8', DC=3/, 20 cm SCT (133x).
[ In outburst. Starlike central condensation. The observed coma
is the result of the recent previous minor outbursts. Comparison
stars taken from APASS photometry. Field stars checked in DSS.
Sidgwick method. SQM : 21.4.].

41P/Tuttle-Giacobini-Kresak:
2017 July 2.05 UT: m1=10.7, Dia.=5', DC=2, 20 cm SCT (77x).
[ Sidgwick method. Tycho-2 comparison stars. SQM : 21.3.].

71P/Clark:
2017 July 2.04 UT: m1=10.1, Dia.=2.5', DC=5, 20 cm SCT (77x).
[ Altitude: 6 deg. Sidgwick method. Tycho-2 comparison stars.
SQM : 20.9.].

C/2015 ER61 (PANSTARRS):
2017 July 2.10 UT: m1=9.5, Dia.=4', DC=4, 20 cm SCT (77x).
[ Sidgwick method. Tycho-2 comparison stars. SQM : 21.0.].

( Alto del Castro - Aralla, Leon, Spain; Alt. 1720 m,
42º 54' N, 5º 48' W. Mountain location, very clear sky. )

---------------------------------------------------------
ICQ Format:

2015ER612017 07 02.10 S 9.5 TK 20.3T10 77 4 4 ICQ XX GON05

29 2017 07 02.06 S 12.2 AQ 20.3T10 133 1.8 3/ ICQ
XX GON05

41 2017 07 02.05 S 10.7 TK 20.3T10 77 5 2 ICQ
XX GON05

71 2017 07 02.04 S 10.1 TK 20.3T10 77 2.5 5 ICQ
XX GON05

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

J. J. Gonzalez

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


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Good Clear Skies
--
Astrocomet
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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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Friday 7 July 2017

Fwd: [CometObs] Digest Number 3285

1 Message

Digest #3285
1
Comet Observations 5th July 2017 by "Bomber2 Panther" outbackmanyep

Message

Wed Jul 5, 2017 11:54 pm (PDT) . Posted by:

"Bomber2 Panther" outbackmanyep

Comet Observations 5th July 2017

213P/ Van Ness
2017 Jul 05.76 UT; m1= 13.5; Dia= 0.7'; 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

29P/ Schwassmann – Wachmann 1
2017 Jul 05.77 UT; m1= 13.3; Dia= 0.8'; DC= 6; 25cm L, f:5 (x83) [Chris Wyatt, Walcha, NSW, Australia]
Post outburst. Does not enhance in Swan Band filter. Stellar central condensation.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ

C/2015 VL62 Lemmon-Yeung-PanSTARRS
2017 Jul 05.78 UT; m1= 14.7; Dia= 0.3'; DC= 2/3; 25cm L, f:5 (x166) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse, slight brightening to centre.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

217P/ LINEAR
2017 Jul 05.79 UT; m1= 12.2; Dia= 2.2'; DC= 5/6; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Coma diffuse with moderately condensed centre. Hint of a tail to the WSW. Low altitude = 16.9°.
Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ

C/2015 ER61 PanSTARRS
2017 Jul 05.80 UT; m1= 9.6; Dia= 5.6'; DC= 6; 25cm L, f:5 (x39) [Chris Wyatt, Walcha, NSW, Australia]
Faint tail visible, 20' in length in P.A. 258°. Inner coma elongated and opaque. Small stellar central condensation. Fragment B not visible. Combined light observation.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK

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Good Clear Skies
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Astrocomet
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--
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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Thursday 6 July 2017

[BAA-ebulletin 00979] The Great Red Spot as Juno flies in

BAA electronic bulletin

Jupiter's Great Red Spot as Juno flies in
The Juno orbiter is due to fly about 9000 km above the centre of the
Great Red Spot (GRS) on Monday night, about 12 minutes after its
closest approach to the planet on July 11 at 01:55 UT. NASA have
posted two press releases, one about the fly-over,
and one showing some superb mid-infrared images of the GRS taken by Dr
Glenn Orton and colleagues on May 18 (and earlier).
These images can be compared with superb visible-light views taken by
Christopher Goon May 19, one of which is shown in a new report posted
on the Jupiter Section web pages (BAA web site > Jupiter Section >
Jupiter in 2016-17 > Report no.13; unfortunately these e-bulletins
cannot give links).
Chris Go's high resolution revealed the regular pattern within the GRS,
whose internal rotation could be observed over less than an hour, as
shown in an animation of maps made by Michel Jacquesson. The report
also shows a very recent image of the GRS (by Gary Walker), which is
at exactly the predicted longitude to be below Juno's track. A preview
of the July 11 flyby (Perijove-7)was posted on the Section web pages
as Report no.12. Meanwhile,the best ground-based image of Jupiter ever
taken was produced on June 11 by Damian Peach with a team of observers
using the 1-metre telescope at the Pic du Midi Observatory in the
French Pyrenees. They were holding a EuroPlanet-sponsored workshop to
promote use of the telescope by advanced amateurs, and produced
an equally outstanding image of Saturn. TheJupiter image does not show
the GRS, but it does show red oval BA and a wealth of intricate detail
in many other features.
Note to members:
We are posting items on the BAA Jupiter Section web pages
quite frequently during this apparition with the Juno mission ongoing,
but rarely send out e-bulletins. So if you would like to keep
up-to-date with Jupiter and Juno, please either check the BAA webpage
and Section web page weekly, or follow 'BAA Jupiter Section' on
Facebook, or contact the BAA Jupiter Section Director via the BAA web
site to become a member of the Section and of our emailing list.
John Rogers

___________________________________

John H. Rogers,
Jupiter Section Director,
British Astronomical Association.
https://www.britastro.org/section_front/15
___________________________________



BAA-ebulletin mailing list visit:
http://lists.britastro.org/mailman/listinfo/baa-ebulletin
(c) 2017 British Astronomical Association http://www.britastro.org/



--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
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 4 July 2017

Fwd: [CometObs] Digest Number 3284

1 Message

Digest #3284
1.1
C/2015V2 Johnson by "willian souza" williansouza

Message

Mon Jul 3, 2017 12:42 pm (PDT) . Posted by:

"willian souza" williansouza



C/2015V2 Johnson

CometObs at yahoogroups.com
icqbr at yahoogroups.com
jdsh at bas.ac.uk
orodeno2 at yahoo.es

IIIYYYYMnL YYYY MM DD.DD eM mm.m:r AAA.ATF/xxxx &dd.ddnDC &t.ttmANG ICQ XX*OBSxx
2015V2 2017 06 26.97 S 8.0:TK 5.0B 7 10 3 ICQ XX SOU01

cometas.liada at gmail.com
jpab at regmurcia.com

C/2015V2 Johnson
2017 June 26.97UT: m= 8.0:, dia=10', DC=3, 7x50 Binoculars...Willian Souza (Rheinsberg, Germany);

icq at cfa.harvard.edu
icqcsc at eps.harvard.edu

C/2015V2 Johnson
Total magnitude and coma diameter estimates:
2017 June 26.97,8.0: 10' (W. Souza, Rheinsberg, Germany, 7x50 binoculars);

http://www.rea-brasil.org/cometas - HP de Cometas/REA

C/2015V2 Johnson
DD.DD M m.m dia. DC cc.c ANG Ins. Ax Observador, Sítio
2017 Junho
26.97 S 8.0: 10' 3 7x50B Willian Souza, Rheinsberg, Alemanha

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Good Clear Skies
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Astrocomet
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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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