西大距
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别错过!这是今年最后一次观测水星的窗口期
Xin Hua She· 2025-12-06 04:29
12月8日,水星将迎来西大距,届时这颗太阳系最内侧的行星将现身黎明前的东南方低空,为天文爱好 者提供难得的目视与拍摄机会。 刘仲利告诉记者,今年水星共有3次西大距,其中8月和12月两次的观测条件都很好。本月8日前后,日 出时水星的地平高度约17度,亮度约0等,"这是今年最后一次观测这颗'晨星'的窗口期,下次再看到水 星就是2026年2月了。" 本次西大距期间,如何才能捕捉到水星的踪影?刘仲利提示说,一要选择理想的地点。注意避开高楼、 树木等遮挡物,优先选择郊外或高地,确保东南方视野开阔;二要把握好时间。最佳观测期在8日前后 约一周内,每天日出前1个小时左右是最佳时段,此时天色已开始微亮,但水星仍清晰可见;三要使用 好辅助工具。虽然水星亮度肉眼可见,但使用双筒望远镜会大大提高观测成功率。(记者周润健) 2022年10月9日水星西大距。这是10月10日在天津东丽区拍摄的水星。(杨婧 摄) 2025年8月19日水星西大距。这是8月26日在广东中山拍摄的水星特写。(汉玲 摄) 在肉眼可见的太阳系几颗行星中,水星是最难观测的一颗。主要原因在于,它是距离太阳最近的行星。 由于距离太阳极近,水星总是湮没在太阳的光辉里,每年 ...
4月25日拂晓金星和土星将上演“双星拱月”
Xin Hua She· 2025-04-23 03:20
Core Points - The astronomical event of "double stars surrounding the moon" featuring Venus and Saturn will occur on April 25, providing a unique viewing opportunity for the public if the weather is clear [1][5][6] - Venus, known as "Tai Bai" in ancient China, will transition between the roles of "Evening Star" and "Morning Star" from late 2024 to the end of 2025 [2] Summary by Sections - **Astronomical Event Details** - On April 25, Venus and Saturn will appear close together in the eastern sky before sunrise, accompanied by a thin crescent moon, forming a triangular arrangement [5] - The visibility of Saturn may be challenging in urban areas due to light pollution, but Venus and the crescent moon are easier to observe [5][6] - The optimal viewing location is suggested to be areas with less light pollution, such as the countryside [5] - **Viewing Recommendations** - The viewing window for this event is limited to about half an hour before sunrise, making it essential for interested observers to be prepared [6] - If the event is missed on April 25, there will be an opportunity to observe a "triple star" event on April 26, where the moon will be positioned closer to Mercury, making it easier to spot [7]