Date
20 August 2017
Path of the moon during the partial lunar eclipse on Aug. 7 to 8 and the moon's contact times with Earth's penumbral and umbral shadows. Photo: HK Observatory
Path of the moon during the partial lunar eclipse on Aug. 7 to 8 and the moon's contact times with Earth's penumbral and umbral shadows. Photo: HK Observatory

Partial lunar eclipse in HK on August 7 and where to see it

A partial lunar eclipse will occur in Hong Kong next Monday, Aug. 7, and last till the next morning.

Most places in Hong Kong with an unobstructed view of the horizon to the south and southwest will be suitable for viewing the event, weather permitting.

The weather will be mainly fine, with isolated showers, on these two days, according to the Hong Kong Observatory.

The eclipse will begin at 11:48 p.m. on Aug. 7 and end at 4:53 a.m. the next morning, with the maximum eclipse coming at 2:21 a.m.

Astronomers say this partial lunar eclipse has an umbral magnitude of 0.25, meaning that 25 percent of the moon’s diameter will enter the umbra (total shadow) of the Earth at the maximum eclipse.

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 this webpage.

As regards the astronomical observation conditions for that night, please refer to the “Weather Information for Astronomical Observation” webpage, which monitors the sky with live images at seven astronomical observation hot spots across Hong Kong.

Some of these spots in suburban areas are nice locations to observe the eclipse, like Shek Pik in southern Lantau island, Cape D’Aguilar in Shek O on Hong Kong Island, High Island Reservoir and Lady MacLehose Holiday Village in Sai Kung.

The nearby Astropark, opened in 2010 with stargazing facilities, is an ideal location run by the Hong Kong Space Museum for 24-hour observation by amateur star lovers. Four sets of 20×80 binoculars are installed, among others, to view celestial objects at nighttime. More details including transportation and venue booking can be found here.

The next lunar eclipse observable in Hong Kong, a total lunar eclipse, will occur on Jan. 31, 2018.

– Contact us at [email protected]

FC/RA

Schematic diagram showing positions (elevation and azimuth) of the moon during the coming partial lunar eclipse. Photo: HK Observatory


Details of the partial lunar eclipse. Photo: HK Observatory


Hong Kong Astropark, located in Chong Hing Water Sports Centre in Sai Kung, is open 24 hours a day for amateur star lovers and is an ideal location for observation of the eclipse. Photo: GovHK


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