The total solar eclipse of 2017 August 21
The track of the total solar eclipse of 2017 Aug 21 begins at sunrise at 16:49UT in the Pacific Ocean
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Archives
Absolute Beginners No. 9: Using filters for visual planetary observation
Introduction Almost all telescopes today come with a set of optical filters. These are small brightly coloured disks of material
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Venus at eastern elongation, 2017
Venus was well placed by the start of 2017, and is being enthusiastically followed. This brief summary goes up to
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From the President: A penumbral lunar eclipse, and BAA ‘Observer’s Challenges’
The recent evening elongation of Venus has attracted much public attention. I lost count of the number of times that
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