Penumbral lunar eclipse in Hong Kong on June 6
21 May 2020
This year's second penumbral lunar eclipse will occur in Hong Kong in the small hours of June 6 (Saturday). If weather permits, the event can be best observed at most places with an unobstructed view towards the southwest. Details of this penumbral lunar eclipse are as follows:
| Date | Time | Phenomenon | Elevation | Direction (Azimuth) |
| June 5 (Friday) |
6.38pm | Moonrise | -1 degree | East-southeast (112 degrees) |
| June 6 (Saturday) |
1.43am | Moon enters penumbra | 41 degrees | South-southwest (207 degrees) |
| 3.25am | Maximum eclipse | 27 degrees | Southwest (229 degrees) |
|
| 5.07am | Moon leaves penumbra | 8 degrees | West-southwest (242 degrees) |
A penumbral lunar eclipse occurs when the moon only enters the penumbra of the Earth but not the umbra. During the event, the moon will become slightly dimmer. The eclipse will begin at 1.43am and end at 5.07am, with the maximum eclipse occurring at 3.25am.
For the latest weather conditions and the astronomical observation conditions on June 6, please refer to the 9-day Weather Forecast issued by the Hong Kong Observatory and the Weather Information for Astronomical Observation webpage .
The next lunar eclipse observable in Hong Kong will occur on November 30 this year. It will also be a penumbral lunar eclipse.
Figure 1 The penumbral lunar eclipse process on June 6, 2020
Figure 2 Schematic diagram showing elevation and azimuth of the moon during the penumbral eclipse on June 6, 2020