.... Lin you are good: The shadow band has a sunspot, when the photography has not paid attention to the lens to be clean, true...
1. It wasn't until fairly recently that the process that causes sunspot was better undeerstood. 中譯: 一直到最近，人類才比較了解造成太陽...
...撇 Gas for the next write 氘 氚 DT 太陽黑子 Sunspot 蛇夫座 Ophiuchus 恆星 Star 宇宙...