天文影像处理对电脑有一定运算力要求。一张简单的行星照片，可以是从十多二三十段录像，总计数十万上百万帧影像中迭加而成。比较理想的做法是临睡前按键处理，早上再做下一步....

其实现在已比较好了，八十年代的电脑运算力一不够，我当年用XT8086电脑运算光学系统随时都要用大半小时才出结果，当机也不时发生，甚至听过有香港爱好者运算望远镜设计时，电脑过热烧了。

Astronomical image processing requires a certain level of computational power from computers. A simple planetary image can be composed by stacking tens to hundreds of thousands of frames from a dozen or more video recordings. The preferred approach is to process them before going to sleep and continue the next steps in the morning...

In fact, the computational power has improved significantly nowadays. Back in the 1980s, the computing power of computers, like the XT8086, was insufficient. It would take me half an hour or more to obtain results using optical systems, and system crashes would occur frequently. I even heard stories of computer overheating and burning when enthusiasts in Hong Kong were designing telescopes.