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Estimating the time of first light of SN 2014J in M82 from MicroObservatory pre-discovery images
SN 2014J was discovered on 2014 January 21, but prediscovery images suggest the supernova may have exploded several days earlier.
Read moreThe Ashen Light of Venus: the oldest unsolved solar system mystery
The Ashen Light, a feeble glowing or colouration of the night-side of Venus, has been discussed ever since Riccioli reported it in 1643.
Read moreRecording of ‘sprites’ by video meteor detection cameras
This paper describes a series of ‘sprites’ serendipitusly recorded by video cameras operated by members of the BAA meteor section
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The Waverton long pendulum experiment, 2009-2012
In 1851 Jean Leon Foucault demonstrated a proof that the Earth turns on its axis, by swinging a long (67m) free pendulum from the roof of the Pantheon in Paris. This paper describes attempts started in 2009 in a rural Cheshire church to repeat that experiment, and what those attempts revealed.
Read moreThe British Astronomical Association and the Great War of 1914-1918
Marking the centenary of the outbreak of the First World War, this paper considers the effect of the war on the BAA and pays tribute to some of its members who were involved in the conflict.
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