Following on from last month’s talk at the Astronomical Society of Edinburgh about astronomical sensors, this image shows how current amateur technology rivals that of the professionals from the past.

The first image I took using glass plates on the James Gregory Telescope 37″ SCT, the largest operational telescope in the UK, at the University of St Andrews in 1984. The one on the right I took in January 2017 using readily available amateur equipment.

Modern sensors make a huge difference. Undoubtedly the JGT can do much better now!