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描述 高功率目镜(例如3mm至10mm)不仅用于对行星和双星的明显观察,而且可以用于明亮,紧凑的深空物体。不仅在填充目镜FOV的情况下,诸如行星星云或球形簇之类的物体的尺度会令人印象深刻,而且背景天空将非常黑,因为对比度随着增强的放大倍数而增加,前提是大气的看见条件足够好揭示尖锐的图像。 4...
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