Total lunar eclipse in Hong Kong on January 31
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The eclipse will begin at 6.50pm on January 31, attain its maximum at 9.30pm and end at 0.10am early next morning. Details of the total lunar eclipse are as follows:
| Date | Hong Kong Time | Phenomenon | Elevation | Direction (Azimuth） |
| January 31 (Wednesday) | 5.59pm | Moonrise | -1 degree | East-northeast (71 degrees) |
| 6.50pm | Moon enters penumbra | 10 degrees | East-northeast (76 degrees) |
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| 7.48pm | Moon enters umbra | 23 degrees | East（80 degrees） | |
| 8.51pm | Total eclipse begins | 37 degrees | East（85 degrees） | |
| 9.30pm | Maximum eclipse | 45 degrees | East（88 degrees） | |
| 10.08pm | Total eclipse ends | 54 degrees | East（92 degrees） | |
| 11.12pm | Moon leaves umbra | 68 degrees | East（101 degrees） | |
| February 1 (Thursday) | 0.10am | Moon leaves penumbra | 80 degrees | Southeast (125 degrees) |
Members of the public can watch the whole event via a webcast to be jointly provided by the Hong Kong Observatory, the Hong Kong Space Museum, the Ho Koon Nature Education cum Astronomical Centre, the Po Leung Kuk Ngan Po Ling College and the Hong Kong Sheng Kung Hui Solar Tower‧Camp on the following webpage: www.hko.gov.hk/gts/event/webcast-20180131.htm.
The Hong Kong Space Museum, together with local astronomy organisations, will organise an observation activity called "Night of Total Lunar Eclipse" on that day. A number of telescopes will be deployed at Central and Western District Promenade (Central Section), Kowloon Park Piazza and Sha Tin Park Main Plaza to enable the public to watch the eclipse. For details, please refer to the following website: www.lcsd.gov.hk/CE/Museum/Space/en_US/web/spm/activity/observation.html.
For the weather on January 31 and February 1, please refer to the latest nine-day weather forecast issued by the Observatory at the following webpage: www.hko.gov.hk/wxinfo/currwx/fnd.htm.
As regards the astronomical observation conditions for that night, please refer to the "Weather Information for Astronomical Observation" webpage: www.hko.gov.hk/gts/astronomy/astro_portal.html.
The next lunar eclipse observable in Hong Kong will occur on July 28, which will also be a total lunar eclipse.
Ends/Tuesday, January 16, 2018
Issued at HKT 15:40
Issued at HKT 15:40
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