Recently Mr Martin Crow, gave a talk entitled “A brief introduction to Astronomy” (The edges of the Jigsaw) for some of the societies new members, to help them better understand the “Jigsaw that is astronomy”.
Martin spoke amongst other things about.
· Measuring astronomical distance by using astronomical units (au) & light years,
· The spectrum of stars to determine their chemical components,
· Looking at objects with different parts of the electromagnetic spectrum i.e. infrared, white & Ultra- violet light.