Fwd: [CometObs] Digest Number 3567

Comet Observations Group

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Digest #3567

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C2018 Y1, 38P, 46P, 64P, 123P. by "jjgonzalez jjgonzalez" jjgsgp

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C2018 Y1, 38P, 46P, 64P, 123P.

Tue Feb 26, 2019 4:47 am (PST) . Posted by:

"jjgonzalez jjgonzalez" jjgsgp

C/2018 Y1 (Iwamoto):
2019 Feb. 25.00 UT: m1=6.8, Dia.=15', DC=3/, 12x45 monocular..
[ Sidgwick method. Tycho-2 comparison stars. SQM: 21.1.].

38P/Stephan-Oterma:
2019 Feb. 24.92 UT: m1=11.5, Dia.=2', DC=2/, 20 cm SCT (100x).
[ Sidgwick method. APASS comparison stars. SQM: 21.5.].

46P/Wirtanen:
2019 Feb. 24.85 UT: m1=8.8, Dia.=8', DC=2, 25x100B.
[ Sidgwick method. Tycho-2 comparison stars. SQM: 21.4.].

64P/Swift-Gehrels:
2019 Feb. 24.97 UT: m1=10.7, Dia.=4', DC=1/, 20 cm SCT (77x).
[ Sidgwick method. Tycho-2 comparison stars. SQM: 21.2.].

123P/West-Hartley:
2019 Feb. 24.95 UT: m1=12.4, Dia.=1.2', DC=4, 20 cm SCT (77x).
[ Sidgwick method. APASS comparison stars. SQM: 21.5.].

( Puerto de Aralla, Leon, Spain, 42º 54' N, 5º 48' W, alt.. 1530 m;
SQM : 21.5 at zenit ).

J. J. Gonzalez

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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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