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HM Nautical Almanac Office

HM Nautical Almanac Office

The HM Nautical Almanac Office is responsible for producing astronomical data and publications to support navigation and astronomy. It provides essential information such as nautical almanacs, astronomical tables, and related data for use by mariners, astronomers, and researchers.

Communication Overview

Total releases

Number of press releases published by this department during the last 12 months, based on publicly available announcements.
0

Avg per month

Average number of press releases published per calendar month over the last 12 months. This smooths short-term fluctuations in publishing activity.
-

Avg word count

Average length of published press releases, measured in words. Calculated only for months where content was published.
-

Avg readability

Average Flesch Reading Ease score across all published press releases. Higher values indicate plainer English. Scores are indicative only and vary by subject matter.
-

Friday PM releases

Percentage of press releases published after 3pm on Fridays, relative to the department’s total output during the period.
0%

Single-release items

Estimated proportion of announcements published once, without a closely related follow-up release during the same period. This is based on similarity of titles and timing.
0%
Metrics are descriptive only and indicate publication patterns rather than intent or impact.

Releases per month

Based on publicly published press releases (last 12 months)

10 articles

Showing 1-10

Total Eclipse of the Moon on 27 July 2018

Total Eclipse of the Moon on 27 July 2018

Thursday, 26 July 2018

Part of the total phase of the lunar eclipse will be visible from the United Kingdom as the Moon rises...

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Crescent Moon Visibility for Ramadan and Eid al Fitr 2018

Crescent Moon Visibility for Ramadan and Eid al Fitr 2018

Thursday, 05 April 2018

HMNAO provides information of the sighting of the new crescent moon for the start of Ramadan and the start of Eid al-Fitr...

Read More → news_story
NavPac 4: Free Software Upgrade for Users of NavPac 3.4

NavPac 4: Free Software Upgrade for Users of NavPac 3.4

Tuesday, 10 January 2017

NavPac 4 is the much anticipated software upgrade to HMNAO’s celestial navigation software package...

Read More → news_story
New Royal Society Paper on Earth Rotation

New Royal Society Paper on Earth Rotation

Thursday, 15 December 2016

A new paper by F.R. Stephenson, L.V. Morrison and C.Y. Hohenkerk, presents new determinations of Earth Rotation from 720 BC to AD 2015...

Read More → news_story
Crescent Moon Visibility for Ramadan and Eid al Fitr 2016

Crescent Moon Visibility for Ramadan and Eid al Fitr 2016

Thursday, 26 May 2016

HMNAO provides information of the sighting of the new crescent moon for the start of Ramadan and the start of Eid al-Fitr...

Read More → news_story
A Transit of Mercury occurs on Monday 9 May 2016

A Transit of Mercury occurs on Monday 9 May 2016

Friday, 06 May 2016

A Transit of Mercury will occur on Monday 9 May 2016 visible from the British Isles...

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Total Eclipse of the Moon on 28 September 2015

Total Eclipse of the Moon on 28 September 2015

Wednesday, 23 September 2015

A total lunar eclipse will be visible from the British Isles on the morning of 28 September 2015...

Read More → news_story
Crescent Moon Visibility for Ramadan and Eid al Fitr 2015

Crescent Moon Visibility for Ramadan and Eid al Fitr 2015

Wednesday, 27 May 2015

HMNAO provides information of the sighting of the new crescent moon for the start of Ramadan and the start of Eid al-Fitr...

Read More → news_story
Total Eclipse of the Sun on 20 March 2015

Total Eclipse of the Sun on 20 March 2015

Friday, 13 March 2015

A deep partial eclipse will be visible from the British Isles on the morning of 20 March 2015...

Read More → news_story
Visibility of the new crescent moon for Ramadan and Eid al Fitr

Visibility of the new crescent moon for Ramadan and Eid al Fitr

Friday, 11 July 2014

HMNAO provides information of the sighting of the new crescent moon for the end of Ramadan and the start of Eid al-Fitr...

Read More → news_story

Ministry of Defence UK to develop new deep strike ballistic missile for Ukraine

Department for Transport How well is your council fixing your roads?

Department for Environment, Food & Rural Affairs Bird flu (avian influenza): latest situation in England

Ministry of Defence UK accelerates £200 million of funding for deployment to Ukraine as air defence support stepped up

Civil Nuclear Constabulary Scottish teams' dedication praised during severe winter weather

Prime Minister's Office, 10 Downing Street Appointment: 9 January 2026

Open Innovation Team Open Innovation Team PhD Placement Scheme 2026-27

Ministry of Justice NHS and probation join forces to break cycle of reoffending

Ministry of Defence Major General Phil Prosser CBE announced as the next Chief of Defence Logistics and Support

The Charity Commission Regulator investigates charity over concerns about asset sale

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