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BAA electronic bulletin
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Upcoming double and triple events of Jupiter's moons
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A fascinating series of double and triple phenomena of Jupiter's moons will be occurring throughout October. The coupled orbits of the inner three moons mean that their phenomena recur at intervals of one week plus a few hours. The events visible from Europe including the UK are transits of I + II, preceded by their shadows, on Oct.5 (02:38-06:05 UT), Oct.12 (see below), Oct.19 (06:25-09:54 UT), Oct.26 (08:37-11:46 UT). (Times are from the first appearance of two shadows on the disk, to the last appearance of two moons on the disk.) John Sussenbach has already provided a nice time-lapse movie of the first event in this series, on Sep.27/28.
The best event is on Oct.12, with the shadow of IV in transit along with the shadows of I + III. There will be at least 2 moons and/or shadows on the disk from 03:24-08:02 UT.
Two other series of similar events will be occurring this month as well, but at times visible from non-European longitudes:
Transits of I + II, preceded by their shadows:
Oct.1, 8, 15, 22, 29/30.
Transits of I + III, preceded by their shadows (with II entering eclipse in the meantime):
Oct.3, 10, 17, 24, 31.
See the BAA Handbook for full details.
John Rogers
(Jupiter Section Director)
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BAA-ebulletin mailing list visit:
http://lists.britastro.org/mailman/listinfo/baa-ebulletin
(c) 2013 British Astronomical Association http://www.britastro.org/
======================================================================
BAA electronic bulletin
======================================================================
Upcoming double and triple events of Jupiter's moons
____________________________________________________
A fascinating series of double and triple phenomena of Jupiter's moons will be occurring throughout October. The coupled orbits of the inner three moons mean that their phenomena recur at intervals of one week plus a few hours. The events visible from Europe including the UK are transits of I + II, preceded by their shadows, on Oct.5 (02:38-06:05 UT), Oct.12 (see below), Oct.19 (06:25-09:54 UT), Oct.26 (08:37-11:46 UT). (Times are from the first appearance of two shadows on the disk, to the last appearance of two moons on the disk.) John Sussenbach has already provided a nice time-lapse movie of the first event in this series, on Sep.27/28.
The best event is on Oct.12, with the shadow of IV in transit along with the shadows of I + III. There will be at least 2 moons and/or shadows on the disk from 03:24-08:02 UT.
Two other series of similar events will be occurring this month as well, but at times visible from non-European longitudes:
Transits of I + II, preceded by their shadows:
Oct.1, 8, 15, 22, 29/30.
Transits of I + III, preceded by their shadows (with II entering eclipse in the meantime):
Oct.3, 10, 17, 24, 31.
See the BAA Handbook for full details.
John Rogers
(Jupiter Section Director)
======================================================================
http://lists.britastro.org/mailman/listinfo/baa-ebulletin
(c) 2013 British Astronomical Association http://www.britastro.org/
======================================================================
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Good Clear Skies
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Astrocomet
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Colin James Watling
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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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Lyra Website: https://sites.google.com/site/lyrasociety/
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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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Information
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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Information
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