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1·The airy disk becomes smaller as you increase the aperture.

当你增加孔径的尺寸时，艾里斑会变小。

2·Airy disk brilliance (the brightness of a point-source stellar image) is proportional to the fourth power of aperture.

艾里斑的亮度(点光源恒星的图像亮度)正比于孔径尺寸的四次方。