BASIL July 2021

Solar cycle progression data shows a spike in sunspot numbers over the last month - predicted numbers are given for the next 12 months, as solar activity is forecast to slowly increase.

Visible passes of the ISS and the UK Prospero satellite are given for July.

30 astronomical events and 25 observing targets for the month are listed, with more details provided for M10, M11, M12, M14, M26 and the Hercules constellation.

Society News includes programme details for July / August and information about the 'Dark Skies Matter' declaration and mission, of which the BAS has recently become an official supporter.