https://blog.wongcw.com/2021/12/29/%e5%9b%9b%e5%80%8b%e8%91%97%e5%90%8d%e7%9a%84%e7%be%8e%e9%ba%97%e6%98%9f%e9%9b%b2%e5%a4%a7%e5%9c%96%e6%ac%a3%e8%b3%9e%ef%bc%9aeagleomega-nebulatrifid%e5%92%8clagoon/
四個著名的美麗星雲大圖欣賞:Eagle,Omega Nebula,Trifid和Lagoon