The Outreach and Press Unit (UC3) of the Instituto de Astrofísica de Canarias (IAC), with the collaboration of Álex Oscoz Abad and the IAC Astrophotography Group (research.iac.es/OOCC/refractor), has published as in previous years an astronomical wall calendar with astronomical ephemeris for the year 2021, which can be consulted and downloaded in digital format. The images that illustrate it have been obtained by Pedro A. González Morales and Jorge A. Pérez Prieto. This calendar joins another published in poster format illustrated with the image of the Heart Nebula.
Both calendars can be downloaded at the following links:
2021 wall calendar: https://www.iac.es/en/outreach/iac-publishing/2021-astronomical-wall-calendar
2021 poster calendar: https://www.iac.es/en/outreach/iac-publishing/2021-astronomical-poster-calendar