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Digest #3586
Message
Thu May 16, 2019 11:28 am (PDT) . Posted by:
"Thomas Lehmann" ewelot
Please find enclosed a list of my recent comet observations in ICQ format.
Magnitudes are derived from large aperture photometry of CCD/DSLR images
(using green filter or green color channel) and are supposed to conform
to visual estimates of total coma magnitudes.
Remote observations were carried out using telescopes from iTelescope.net.
For image reduction and photometric analysis I used my AIRTOOLS software
(see https://github.com/ewelot/airtools).
Thomas Lehmann
Weimar, Germany
2016M1 2019 05 12.36 Z 12.6 AQ 10.6R 5a720 5.0 0.16 179 LEHaaI C 5.00mSTL KA1 AIT 5 3.5s 3.5 mlim=18.4, CCD/G remote (SSO), moon 54% dist 83 deg
2016R2 2019 05 15.02 Z 15.2 AQ 20.0L 4F482 2.4 LEHaaI C 2.40mPDS CAC AIT 5 1.2s 1.2 mlim=20.4, DSLR green, moon 82% dist 57 deg
2017K2 2019 05 13.01 Z 17.0 AQ 20.0L 4I965 0.8 LEHaaI C 0.80mPDS CAC AIT 5 1.2s 1.2 mlim=21.4, DSLR green, moon 61% dist 90 deg
2018W2 2019 05 12.90 Z 14.2 AQ 20.0L 4E764 2.7 0.02 57 LEHaaI C 2.70mPDS CAC AIT 5 1.2s 1.2 mlim=20.8, DSLR green, moon 60% dist 81 deg
2018W2 2019 05 14.89 Z 14.5 AQ 20.0L 4C482 1.9 0.02 44 LEHaaI C 1.90mPDS CAC AIT 5 1.2s 1.2 mlim=20.0, DSLR green, moon 81% dist 99 deg
2019D1 2019 05 09.43 Z 13.0 AQ 10.6R 5A980 6.1 0.17 256 LEHaaI C 6.10mSTL KA1 AIT 5 3.5s 3.5 mlim=19.0, CCD/G remote (Mayhill)
2019D1 2019 05 15.44 Z 13.0 AQ 10.6R 5A080 5.8 0.18 258 LEHaaI C 5.80mSTL KA1 AIT 5 3.5s 3.5 mlim=19.1, CCD/G remote (Mayhill)
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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