Hope everyone has been well.
The 2020 astronomy calendar is now available for free download (2.5 MB pdf) from https://bit.ly/35bSto3
Versions downloaded prior to 11pm on Tuesday, December 10th, 2019:- January notes say Venus is 4 arc-seconds from Neptune. This should read 4 arc-minutes. The information in the event date box is okay though. The link has been updated to the corrected version of the calendar.