David Swan – British Astronomical Association

Estimating the Coma Size and Brightness of Comets (Part 2: Imaging)

9 April 20239 April 2023 David Swan 0 Comments

David Swan takes responsibility for any errors in this article, which is an adaptation of content originally developed by Nick

22 February 2023 Cosmic Rays are high-energy subatomic particles which fly through the Universe at speeds approaching the speed of

The written content here was authored by Jonathan Shanklin and originally published in the Association’s Comet Observing Guide. Minor amendments

7 July 202015 March 2022 David Swan 0 Comments

Mark Salisbury details how to acquire, analyse and publish data on exoplanet transits

14 June 202015 March 2022 David Swan 0 Comments

Richard McKim shares tips and anecdotes on sketching the planets

26 May 202015 March 2022 David Swan 0 Comments

Mike writes about how to start research into the history of astronomy

2 May 20203 March 2022 David Swan 0 Comments

Lyn explains how to categorise sunspot groups according to their quality

John Cook, the Radio Astronomy section director, writes about how to detect the effect of the sun on the Earth’s ionosphere

How to observe the November 2019 Mercury transit

A brief history of comet imaging and some of the fundamentals of current imaging technology