金星和火星：在夜空擦身而过

2022年3月29日

Venus and Mars: Passing in the Night
Image Credit & Copyright: Carlos Kiko Fairbairn

Explanation: When two planets pass on the night sky, they can usually be seen near each other for a week or more. In the case of this planetary conjunction, Venus and Mars passed within 4 degrees of each other earlier this month. The featured image was taken a few days prior, when Venus was slowing rising in the pre-dawn sky, night by night, while Mars was slowly setting. The image, a four-part mosaic, was captured in Brazil from the small town Teresópolis. Besides Venus and Mars, the morning sky now also includes the more distant planet Saturn. Of course, these conjunctions are only angular — Venus, Mars, and Saturn continue to orbit the Sun in very different parts of our Solar System. Next week, the angle between Saturn and Mars will drop to below a quarter of a degree.

Tomorrow’s picture: rings unknown

金星和火星：在夜空擦身而过
影像提供与版权: Carlos Kiko Fairbairn

说明: 当两颗行星在夜空擦身而过时，通常在一周或更长时间里，它们彼此都很接近。例如在上面这例行星近合里，金星和火星在本月稍早的这段期间，二者相隔不到4度。数天前在巴西的Teresópolis小镇，拍下这幅由4张照片组合而成的主题影像时，当时金星在黎明前的天空中缓慢升起，而夜过一夜，火星则缓缓西沉。除了金星和火星之外，目前清晨的天空还可见到更遥远的土星。当然，它们只是在视角上发生近合，金星、火星和土星仍持续在我们太阳系的不同区域绕太阳运行。在下星期，土星和火星之间的视间距将降至四分之一度以下。

明日的图片: rings unknown