Description: 夜晚抬頭仰望，你可能會看到恆星在閃爍。大氣中的空氣總是在運動，當恆星發出的光經過有湍流的區域時，會發生不同程度的偏轉。因此，我們在天空中看到的每顆恆星並不是穩定的單個光點，而是跳躍、不斷變化、扭曲的一連串光點。這樣的閃爍使得天文學家無法以大型地面望遠鏡本應達到的水平拍攝到天體的詳細圖像。自適應光學是減輕這種效應的一種方法。自適應光學（AO）系統利用真實的恆星或是激光投射的“人造恆星”，實時監測大氣畸變。進入望遠鏡的光線被引導到一面可變形的鏡子上。在計算機的控制下，鏡面以適當的方式不斷變形，以抵消大氣畸變的影響。

Related Terms:

• 光學
• 反射鏡

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