Kielder Observatory 2026 Calendar

The Kielder Observatory Calendar is back for 2026! Showcasing 12 beautiful images of Northumberland night skies and deep space objects taken by our astronomer team. Packed with information on moon phases, celestial events and birthdays of notable figures in the world of astronomy, cosmology and physics. The calendar is folded to A4 size and opens to A3 size, with punched hole for hanging and stapled centrefold. Every calendar purchased raises funds to support our work in astronomy outreach.

Kielder Observatory Annual Pass Calendar Competition!

All calendars purchased through our shop will automatically be entered into a draw for an exclusive annual pass to Kielder Observatory's events. The winning number will be announced via Kielder Observatory’s official social media channels and newsletter on 31 January 2026. The holder of the winning number must contact Kielder Observatory within 14 days of the announcement to claim the prize. Full terms here.

Calendars are sent Royal Mail Second Class or Tracked 48 service.