新华社天津12月29日电（记者周润健）12月31日，是2025年的最后一天。当晚，一场天象大戏——月掩昴星团将在天宇上演，陪大家一起跨年。 "人们在地球上看到的月球周而复始的圆缺变化现象称为月相，而月掩昴星团的观赏性就取决于月相的变化。月亮越细，亮度越低，对昴星团的影 响就越小。反之，月亮越圆，亮度越高，对昴星团的影响越大。在今年这4次月掩昴星团中，3月那次的月相是最小的，其次是8月那次。而11月和 12月的两次月相都接近满月，明亮的月光对欣赏昴星团构成不小的影响。"刘仲利说。 具体来看，12月31日，农历十一月十二，月相为盈凸月。这天日落后，盈凸月和昴星团就已出现在东方天空，月球在上，昴星团在下，二者相距 并不远。随着时间推移，月球会逐渐向昴星团靠近。月掩昴星团发生在21时至22时，全国均可以观测到。 "不过由于月光很强，掩盖了昴星团中星星的光辉，感兴趣的公众最好是借助小型天文望远镜或双筒望远镜进行观测或拍摄。要想看得更清晰，最 好是到光污染小的地方，如郊外、农村等。"刘仲利提示说。 昴星团位于金牛座，整体亮度约为1.6等，在夜空中相当显眼，是肉眼就能辨认出的疏散星团之一，亦是天文爱好者最喜欢观测的深空天体 ...

转自：北京日报客户端 12月31日，是2025年的最后一天。当晚，一场天象大戏——月掩昴星团将在天宇上演，陪大家一起跨 年。 月20日，在河北省承德市兴隆县兴隆镇大灰窑村拍摄的昴星团特写。（刘仲利 摄） 16日，在黑龙江省同江市拍摄的月掩昴星团。（刘万平 摄） 昴星团位于金牛座，整体亮度约为1.6等，在夜空中相当显眼，是肉眼就能辨认出的疏散星团之一，亦 是天文爱好者最喜欢观测的深空天体之一。每当天空晴朗、光污染较小时，它就像一小团淡蓝色的星 点，安静地悬挂在夜空中。 2025年10 2025年11 月18日，在内蒙古自治区红山军马场拍摄的昴星团特写。（刘仲利 摄） 中国天文学会会员、天津科学技术馆天文科普专家刘仲利介绍，月掩昴星团是月球运行至昴星团前方 时，短暂遮住其中一些恒星的天文现象。月球绕地运行的轨道与黄道接近，因此会不定期从昴星团附近 经过。今年适合我国观测的有4次，分别是3月5日、8月16日、11月6日和12月31日。 "人们在地球上看到的月球周而复始的圆缺变化现象称为月相，而月掩昴星团的观赏性就取决于月相的 变化。月亮越细，亮度越低，对昴星团的影响就越小。反之，月亮越圆，亮度越高，对昴星团的影响越 ...

"人们在地球上看到的月球周而复始的圆缺变化现象称为月相，而月掩昴星团的观赏性就取决于月相的 变化。月亮越细，亮度越低，对昴星团的影响就越小。反之，月亮越圆，亮度越高，对昴星团的影响越 大。在今年这4次月掩昴星团中，3月那次的月相是最小的，其次是8月那次。而11月和12月的两次月相 都接近满月，明亮的月光对欣赏昴星团构成不小的影响。"刘仲利说。 具体来看，12月31日，农历十一月十二，月相为盈凸月。这天日落后，盈凸月和昴星团就已出现在东方 天空，月球在上，昴星团在下，二者相距并不远。随着时间推移，月球会逐渐向昴星团靠近。月掩昴星 团发生在21时至22时，全国均可以观测到。 "不过由于月光很强，掩盖了昴星团中星星的光辉，感兴趣的公众最好是借助小型天文望远镜或双筒望 远镜进行观测或拍摄。要想看得更清晰，最好是到光污染小的地方，如郊外、农村等。"刘仲利提示 说。 月掩昴星团之前和之后的月伴昴星团也很好看。在跨年钟声响起之前，不妨给自己几分钟时间，看看这 场来自天宇的"年终演出"，用星空为旧一年画上一个安静而浪漫的句号。（完） 新华社天津12月29日电（记者周润健）12月31日，是2025年的最后一天。当晚，一场天象大 ...

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].

Core Points - The article discusses the lunar occultation of the Pleiades star cluster, providing an opportunity for public observation on November 6 [1][4]. Group 1: Pleiades Star Cluster - The Pleiades star cluster, located in Taurus, is one of the closest and brightest open star clusters, typically visible to the naked eye with six to seven bright stars [2]. - The confirmed number of stars in the Pleiades cluster exceeds one thousand [2]. Group 2: Lunar Occultation Events - The moon's orbit around the Earth, known as the ecliptic, allows for multiple lunar occultations of the Pleiades throughout the year, with four notable occurrences in 2023 [4]. - The specific dates for observable lunar occultations in 2023 are March 5, August 16, November 6, and December 31 [4]. Group 3: Observational Conditions - The visibility of the Pleiades during the lunar occultation is affected by the moon's phase, with smaller moon phases providing better visibility of the stars [8]. - On November 6, the moon will rise above the Pleiades, starting to obscure it around 10 PM, with the event lasting approximately two hours [8].

Core Points - November will feature several astronomical events including a "Supermoon," lunar occultation of the Pleiades, and Uranus opposition, creating a spectacular celestial display in the autumn sky [1][2] Group 1: Supermoon - The "Supermoon" will occur on the evening of November 5, when the moon reaches its perigee and is full, appearing larger and brighter than usual, with a visual diameter of up to 34 arcminutes [1] Group 2: Lunar Occultation - On November 6, a lunar occultation of the Pleiades star cluster will take place, although bright moonlight may hinder visibility, requiring telescopes for optimal observation [1] Group 3: Uranus Opposition - Uranus will reach opposition on November 21, providing the best viewing opportunity of the year as it will be closest to Earth, appearing with a unique blue-green hue in telescopes [2] Group 4: Observation Recommendations - It is recommended to observe these celestial events in locations away from city lights for better visibility, with most phenomena requiring binoculars or telescopes for enhanced viewing, except for the "Supermoon" which can be seen with the naked eye [2]

Core Points - The article discusses the astronomical event of the moon passing in front of the Pleiades star cluster, also known as the "Seven Sisters," which will occur on August 16, 2023, after midnight and post moonrise [1][6] - The Pleiades star cluster is one of the closest and brightest open star clusters, easily observable with the naked eye in the northern hemisphere [2] - The event of the moon obscuring the Pleiades is not rare, with four occurrences in China this year, including the one on August 16 [5] Observation Details - The moon will not completely obscure the Pleiades due to the cluster's larger visual diameter compared to the moon [2] - The best viewing conditions will be in eastern regions of China, where the moon rises earlier, while western regions will miss the event as it will have already concluded [6] - Observers are encouraged to find open, dark areas for optimal viewing, using binoculars or cameras for photography [8]