Assertion: secondary coma | /r/CapableOf | increase with fourth power of zonal height
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Source sentences:
text: Unlike primary coma, where the zonal ray circles increase with the square of zonal height, and the circle center is at its diameter away from Gaussian focus, with secondary coma the zonal ray circle diameter increases with the fourth power of zonal height, while its center shifts by 1.5 the circle radius from Gaussian focus.