# 月球 > 即地卫一,俗称月亮,是地球唯一的天然衛星,直徑略大于地球的四分之一,質量约为地球的1/81,相对于所环绕的行星,它是体积和质量最大的卫星,并且是太陽系中第五大的衛星,也是太阳系内密度第二高的卫星,仅次于木卫一。 ## Recent Posts - [狮子](https://paragraph.com/@0x1bccbd8c4b499f79554630f275e012d3d0c411fd/hMH6ts4B3ukKJvJF0YAj) - [老虎](https://paragraph.com/@0x1bccbd8c4b499f79554630f275e012d3d0c411fd/uxOYvMwpLhk8tIu7iwgi) - [月球](https://paragraph.com/@0x1bccbd8c4b499f79554630f275e012d3d0c411fd/MdgicdOPhyjzHyjzd1aK) ## Blog Information - [Homepage](https://paragraph.com/@0x1bccbd8c4b499f79554630f275e012d3d0c411fd/): Main blog page - [RSS Feed](https://api.paragraph.com/blogs/rss/@0x1bccbd8c4b499f79554630f275e012d3d0c411fd): Subscribe to updates ## Optional - [All Posts](https://paragraph.com/@0x1bccbd8c4b499f79554630f275e012d3d0c411fd/): Complete post archive - [Sitemap](https://paragraph.com/@0x1bccbd8c4b499f79554630f275e012d3d0c411fd/sitemap-index.xml): XML sitemap for crawlers