Tutorial – British Astronomical Association

12P/Pons-Brooks observing campaign

Comet 12P/Pons-Brooks comes to perihelion this April. It has an orbital period of 71 years and a large nucleus which

Introduction Jupiter is now embarking on its most favourable apparition for many years for northern-hemisphere observers, reaching a declination of

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

This tutorial contains two guides written by Richard Lee and associated sample files. Part 1 of the AstroImageJ User Guide

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

Introduction A previous tutorial discussed how the Doppler Effect can be used to determine the velocity of an astronomical object

Introduction How is it we know how fast stars and galaxies are moving towards or away from us? How can

It is a tradition for members of the BAA at the end of December to exchange summaries of their year

How to avoid image distortions caused by heat