George Alcock goes to Antarctica
Jonathan Shanklin, past Comet Section Director and Emeritus Fellow of the British Antarctic Survey, reports on the memorable George Alcock Memorial Lecture he gave to the Association this year.
Read moreJonathan Shanklin, past Comet Section Director and Emeritus Fellow of the British Antarctic Survey, reports on the memorable George Alcock Memorial Lecture he gave to the Association this year.
Read moreThis meeting was held as a webinar using Zoom and YouTube, due to the continued restrictions caused by COVID-19. Alan
Read moreCelestron product code 93691, £240 (UK). The viewer arrives in a small padded aluminium case. It fits into a standard
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Read moreThe study of cataclysmic variable stars has long been a fruitful area of co-operation between amateur and professional astronomers. In this Address, I take stock of our current understanding of these fascinating binary systems. I consider the sky surveys that are already on stream, providing near continuous and precise photometry of these systems. I show that while these surveys might be perceived as a threat to amateur observations, they actually provide new opportunities, although amateurs need to adapt and focus their efforts. I identify areas where amateurs equipped for either visual observing or CCD photometry can still make scientifically useful observations.
Read moreVisual photometry is the earliest form of photometry of variable stars, but is today considered to be of limited value due to its low accuracy compared with photometry undertaken by electronic means. This presentation is intended to challenge this view.
Read morePaul Abel describes the observations you can make of our sister planet Venus, and explains the reasons for its varying position and brightness as it orbits the Sun.
Read moreA basic introduction to variable stars by Paul Abel.
Read morePaul G. Abel takes a look at celestial coordinate systems.
Read moreIn the last ‘Absolute Beginners’ we considered the various types of telescope which are available to the amateur. However, it
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