或许不少人在童年时都有数星星的经历。在我的童年记忆里,天上的星星多得数不清。但是,现今城市夜空中的星星越来越好数了,因为城市的夜空越来越亮,稍暗一点的星星就看不见了,只能在天空中看见几十颗特别明亮的星星。不仅城市的夜空如此,城市周边的夜空也被灯光污染得越来越明亮了。当一些偏僻的地区成为旅够胜地之后,日渐增多的灯光也令当地的夜空越来越单调。为了让人们意识到保护夜空的重要性,国际夜空保护组织从2010 Perhaps many people in childhood have a few stars experience. In my childhood memory, there are countless stars in the sky. However, the stars in the urban night sky are getting better and better now. Because the night sky in the city is becoming brighter and brighter, the dimmer stars can not see, and dozens of extra bright stars can only be seen in the sky. Not only the night sky in the city is such that the night sky around the city is also becoming more and more brightly lit with light. When some remote areas become a tourist spot, the increasing lighting also makes the local night sky more and more monotonous. In order to make people aware of the importance of protecting the night sky, International Night Watch from 2010