Electronic version of “Hong Kong Observatory Almanac 2023” now available

23 December 2022

The electronic version of Hong Kong Observatory Almanac 2023 was launched today (December 23) for free download.

The Almanac is bilingual and tabulated by month. It contains information including the traditional Chinese calendar, solar terms and moon phases, as well as the times of daily sunrise, sun transit, sunset, moonrise, moon transit, moonset and high and low tides, with the times of meridian passage and the rising and setting of the sun and planets graphically illustrated. The Almanac also includes a detailed Sun Path Diagram and quarterly star maps of the year. In addition, information on the duration of twilight, determination of apparent solar time, details of solar and lunar eclipses and observation of meteor showers and planetary phenomena, as well as background information on calendars and the 24 solar terms are included.

To enhance public interest in astronomy and geophysics, the Almanac includes two feature articles titled "Chinese Calendar Moves with the Times" and "An Introduction to Spring Tide" in the chapter of "Popular Science Corner".

The full version of the "Hong Kong Observatory Almanac 2023" in PDF format is now available on the HKO's website for browsing and download.

Front cover of Hong Kong Observatory Almanac 2023