New HM Nautical Almanac Office (HMNAO) website improves access to celestial navigation data

We are pleased to announce the launch of the new HMNAO website.

After retiring our previous HMNAO website, we have invested months of development and careful planning to deliver an improved digital experience that better meets the needs of our end users.

The website includes standard HMNAO data pages as well as a new Admiralty NavPac unlocking functionality to support our customers once they have purchased the latest Admiralty NavPac software. 

Visit the new website to access the astronomical and celestial navigational support information HMNAO provides. 

If you have any feedback on the new website, we would like to hear from you. Please contact Products.feedback@ukho.gov.uk and let us know what you think.