Fwd: [CometObs] Digest Number 3590

Comet Observations Group

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Digest #3590

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C/2018 R3, C/2019 D1, 29P. by "jjgonzalez jjgonzalez" jjgsgp

Message

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C/2018 R3, C/2019 D1, 29P.

Sat Jun 1, 2019 1:43 am (PDT) . Posted by:

"jjgonzalez jjgonzalez" jjgsgp

C/2018 R3 (Lemmon):
2019 May. 30.93 UT: m1=10.1, Dia.=4', DC=2/, 20 cm SCT (77x).
[ Altitude: 18°. Sidgwick method. Tycho-2 comparison stars. SQM: 21.0.].

C/2019 D1 (Flewelling):
2019 May. 31.10 UT: m1=13.2, Dia.=0.5', DC=5, 20 cm SCT (200x).
[ Motion checked over a 20-min period. Nearby field stars checked
in DSS. Limiting star magnitude near comet: 14.7 (AQ).
Sidgwick method. APASS comparison stars. SQM: 21.1.].

29P/Schwassmann-Wachmann:
2019 May. 31.11 UT: m1=11.2, Dia.=2', DC=2/, 20 cm SCT (100x).
[ In evolution after the recent outburst. Altitude: 12°.
Beginning of astronomical twilight. Sidgwick method.
APASS comparison stars. SQM: 20.8.].

( Pandorado, Leon, Spain, 42º 47' N, 6º 00' W, alt. 1190 m;
SQM : 21.4 at zenit ).

J. J. Gonzalez Suarez

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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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Profile: http://www.google.com/profiles/astrocomera

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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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