Fwd: [CometObs] Digest Number 3623

Comet Observations Group

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Digest #3623

1

Comet V-OBS (2019 Sept. 21): C/2018 W2        

Sat Sep 21, 2019 3:14 pm (PDT) . Posted by:

biely.marek

Hello everyone,
here is my latest comet observation:


C/2018 W2 (Africano):
2019 Sept. 21.89 UT: m1=8.9, Dia.=5.5', DC=3, 20x80 binoculars
[Diffuse, but fairly easy to see. Moon was just above the horizon and was not visible from the observing position, so it did not interfere the observation.]


The ICQ format is available on COBS https://cobs.si/.



Nice day to all.
Marek Biely, Czech Republic, Brno (244 m a.s.l.)

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 K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)

[CometObs] Digest Number 3621

Comet Observations Group

Comet Observations 16th September 2019

Mon Sep 16, 2019 4:50 am (PDT) . Posted by:

"Bomber2 Panther" outbackmanyep

Comet Observations 16th September 2019

68P/ Klemola
2019 September 16.36 UT; m1= 13.3; Dia= 1.4'; DC= 3; 40cm L, f:4.5
(x108) [Chris Wyatt, Walcha, NSW, Australia]
No enhancement in Swan Band filter, very diffuse.
Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

68 2019 09 16.37 xS 13.3 AQ 40.0L 4 108 1.4 3 ICQ XX WYA

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 K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)

Fwd: [CometObs] Digest Number 3619

Comet Observations Group

1 Message

Digest #3619

1

C/2017 T2, C/2018 N2, C/2018 W2, 68P, 260P - 3 + 4 Sep. 2019 - J J G by "jjgonzalez jjgonzalez" jjgsgp          

C/2017 T2, C/2018 N2, C/2018 W2, 68P, 260P - 3 + 4 Sep. 2019 - J J G

Fri Sep 6, 2019 4:22 am (PDT) . Posted by:

"jjgonzalez jjgonzalez" jjgsgp

C/2017 T2 (PANSTARRS):
2019 Sep. 4.17 UT: m1=9.6, Dia.=6', DC=2, 20 cm SCT (77x).
[ Diffuse outer coma appears smaller and fainter than
in previous observation: diameter 6', providing m=9.6 at 77x.
Brighter inner coma diameter 2', providing m=11.3 at 133x.
Zodiacal light. Nearby field stars checked in DSS.
Sidgwick method. Tycho-2 comparison stars. SQM: 21.2.].

C/2018 N2 (ASASSN):
2019 Sep. 4.02 UT: m1=11.7, Dia.=1.5', DC=5, 20 cm SCT (100x).
[ Sidgwick method. Tycho-2 comparison stars. SQM: 21.5.].

C/2018 W2 (Africano):
2019 Sep. 4.10 UT: m1=9.8, Dia.=6', DC=2/, 20 cm SCT (77x).
[ Sidgwick method. Tycho-2 comparison stars. SQM: 21.4.].

68P/Klemola:
2019 Sep. 3.95 UT: m1=10.8, Dia.=3', DC=3, 20 cm SCT (100x).
[ Brighter inner coma diameter 3', providing m=10.8.
Faint and diffuse outer coma diameter 8', providing m=9.7.
Altitude: 19°. Sidgwick method. Tycho-2 comparison stars.
SQM: 21.0.].

260P/McNaught:
2019 Sep. 4.07 UT: m1=11.6, Dia.=1.5', DC=4, 20 cm SCT (133x).
[ Sidgwick method. APASS comparison stars. SQM: 21.5.].

( Alto del Castro, Leon, Spain, 42º 55' N, 5º 48' W, alt. 1720 m;
SQM 21.5 at zenith ).

J. J. Gonzalez Suarez

----------------------------------------------------------
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 K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)