别错过！今年最后一次“超级月亮” 12月4日晚观测更佳

Core Viewpoint - The article discusses significant astronomical events occurring in December, including the last supermoon of the year and the peak of the Geminid meteor shower, providing details on optimal viewing times and conditions [1]. Group 1: Supermoon and Lunar Observations - The last supermoon of the year will occur on December 5, with optimal viewing on the night of December 4 [1]. - The distance between the moon and Earth varies between approximately 360,000 to 400,000 kilometers, resulting in a size difference of about 14% between the largest and smallest full moons [1]. Group 2: Mercury and Meteor Showers - Mercury will reach its western elongation on December 8, marking the last opportunity to observe the planet this year, with the next chance not until February [1]. - The peak of the Geminid meteor shower will occur on the morning of December 14, with the best viewing time from the night of December 13 to the early hours of December 14, featuring a zenithal hourly rate of about 150 meteors [1]. Group 3: Year-End Celestial Events - On December 31, the moon will pass by the Pleiades star cluster between 21:00 and 22:00, although the bright moonlight may obscure the visibility of the stars [1].