1·According to scientific results, on Winter solstice, a right angle is formed by the sun and the tropic of carpricorn.
根据科学的结果，在冬至，太阳和南回归线形成了一个直角。
2·Winter solstice is the shortest day of the year in the Northern Hemisphere and marks the official beginning of winter.
冬至在北半球是一年里最短的一天，同时也标志着冬天正式开始。
3·The last time a lunar eclipse occurred on the winter solstice, astronomer Galileo Galilei was languishing under house arrest for suggesting the Earth circled the sun.
上次月全食发生在冬至期间的时候，天文学家伽利略正因为自己提出“日心说”理论而被软禁着。
4·Once every 25, 800 years, the sun lines up with the centre of our Milky Way galaxy on a winter solstice, the sun's lowest point in the horizon.
每过25 800年，在冬至日，太阳都将与银河系的中心重合，太阳的最低点在地平线上。
5·The rare lunar eclipse has fallen on the winter solstice at the Greenwich meridian of December 21, 2010, making the day the "darkest" ever in 372 years.
2010年12月21日正午时分(格林尼治时间)，月全食和冬至时间偶遇，于是372年来最“黑暗”的日子就此诞生。